20218152420

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{239}}^1\times {\mathrm{661}}^1$

素因数の和:1000

約数の個数: 240

約数和(自身を含む): 64594252800

約数和(自身を除く): 44376100380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 79, 81, 90, 108, 135, 158, 162, 180, 237, 239, 270, 316, 324, 395, 405, 474, 478, 540, 661, 711, 717, 790, 810, 948, 956, 1185, 1195, 1322, 1422, 1434, 1580, 1620, 1983, 2133, 2151, 2370, 2390, 2644, 2844, 2868, 3305, 3555, 3585, 3966, 4266, 4302, 4740, 4780, 5949, 6399, 6453, 6610, 7110, 7170, 7932, 8532, 8604, 9915, 10665, 10755, 11898, 12798, 12906, 13220, 14220, 14340, 17847, 18881, 19359, 19830, 21330, 21510, 23796, 25596, 25812, 29745, 31995, 32265, 35694, 37762, 38718, 39660, 42660, 43020, 52219, 53541, 56643, 59490, 63990, 64530, 71388, 75524, 77436, 89235, 94405, 96795, 104438, 107082, 113286, 118980, 127980, 129060, 156657, 157979, 169929, 178470, 188810, 193590, 208876, 214164, 226572, 261095, 267705, 283215, 313314, 315958, 339858, 356940, 377620, 387180, 469971, 473937, 509787, 522190, 535410, 566430, 626628, 631916, 679716, 783285, 789895, 849645, 939942, 947874, 1019574, 1044380, 1070820, 1132860, 1409913, 1421811, 1529361, 1566570, 1579790, 1699290, 1879884, 1895748, 2039148, 2349855, 2369685, 2548935, 2819826, 2843622, 3058722, 3133140, 3159580, 3398580, 4229739, 4265433, 4699710, 4739370, 5097870, 5639652, 5687244, 6117444, 7049565, 7109055, 7646805, 8459478, 8530866, 9399420, 9478740, 10195740, 12480341, 12796299, 14099130, 14218110, 15293610, 16918956, 17061732, 21148695, 21327165, 24960682, 25592598, 28198260, 28436220, 30587220, 37441023, 42297390, 42654330, 49921364, 51185196, 62401705, 63981495, 74882046, 84594780, 85308660, 112323069, 124803410, 127962990, 149764092, 187205115, 224646138, 249606820, 255925980, 336969207, 374410230, 449292276, 561615345, 673938414, 748820460, 1010907621, 1123230690, 1347876828, 1684846035, 2021815242, 2246461380, 3369692070, 4043630484, 5054538105, 6739384140, 10109076210, 20218152420]

約数ペア:

[(1, 20218152420), (2, 10109076210), (3, 6739384140), (4, 5054538105), (5, 4043630484), (6, 3369692070), (9, 2246461380), (10, 2021815242), (12, 1684846035), (15, 1347876828), (18, 1123230690), (20, 1010907621), (27, 748820460), (30, 673938414), (36, 561615345), (45, 449292276), (54, 374410230), (60, 336969207), (79, 255925980), (81, 249606820), (90, 224646138), (108, 187205115), (135, 149764092), (158, 127962990), (162, 124803410), (180, 112323069), (237, 85308660), (239, 84594780), (270, 74882046), (316, 63981495), (324, 62401705), (395, 51185196), (405, 49921364), (474, 42654330), (478, 42297390), (540, 37441023), (661, 30587220), (711, 28436220), (717, 28198260), (790, 25592598), (810, 24960682), (948, 21327165), (956, 21148695), (1185, 17061732), (1195, 16918956), (1322, 15293610), (1422, 14218110), (1434, 14099130), (1580, 12796299), (1620, 12480341), (1983, 10195740), (2133, 9478740), (2151, 9399420), (2370, 8530866), (2390, 8459478), (2644, 7646805), (2844, 7109055), (2868, 7049565), (3305, 6117444), (3555, 5687244), (3585, 5639652), (3966, 5097870), (4266, 4739370), (4302, 4699710), (4740, 4265433), (4780, 4229739), (5949, 3398580), (6399, 3159580), (6453, 3133140), (6610, 3058722), (7110, 2843622), (7170, 2819826), (7932, 2548935), (8532, 2369685), (8604, 2349855), (9915, 2039148), (10665, 1895748), (10755, 1879884), (11898, 1699290), (12798, 1579790), (12906, 1566570), (13220, 1529361), (14220, 1421811), (14340, 1409913), (17847, 1132860), (18881, 1070820), (19359, 1044380), (19830, 1019574), (21330, 947874), (21510, 939942), (23796, 849645), (25596, 789895), (25812, 783285), (29745, 679716), (31995, 631916), (32265, 626628), (35694, 566430), (37762, 535410), (38718, 522190), (39660, 509787), (42660, 473937), (43020, 469971), (52219, 387180), (53541, 377620), (56643, 356940), (59490, 339858), (63990, 315958), (64530, 313314), (71388, 283215), (75524, 267705), (77436, 261095), (89235, 226572), (94405, 214164), (96795, 208876), (104438, 193590), (107082, 188810), (113286, 178470), (118980, 169929), (127980, 157979), (129060, 156657)]