20512483160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{73}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1$

素因数の和:518

約数の個数: 192

約数和(自身を含む): 51159509280

約数和(自身を除く): 30647026120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 169, 197, 211, 260, 292, 338, 365, 394, 422, 520, 584, 676, 730, 788, 844, 845, 949, 985, 1055, 1352, 1460, 1576, 1688, 1690, 1898, 1970, 2110, 2561, 2743, 2920, 3380, 3796, 3940, 4220, 4745, 5122, 5486, 6760, 7592, 7880, 8440, 9490, 10244, 10972, 12337, 12805, 13715, 14381, 15403, 18980, 20488, 21944, 24674, 25610, 27430, 28762, 30806, 33293, 35659, 37960, 41567, 49348, 51220, 54860, 57524, 61612, 61685, 66586, 71318, 71905, 77015, 83134, 98696, 102440, 109720, 115048, 123224, 123370, 133172, 142636, 143810, 154030, 166268, 166465, 178295, 186953, 200239, 207835, 246740, 266344, 285272, 287620, 308060, 332536, 332930, 356590, 373906, 400478, 415670, 493480, 540371, 575240, 616120, 665860, 713180, 747812, 800956, 831340, 934765, 1001195, 1080742, 1331720, 1426360, 1495624, 1601912, 1662680, 1869530, 2002390, 2161484, 2430389, 2603107, 2701855, 3034391, 3739060, 4004780, 4322968, 4860778, 5206214, 5403710, 6068782, 7024823, 7478120, 8009560, 9721556, 10412428, 10807420, 12137564, 12151945, 13015535, 14049646, 15171955, 19443112, 20824856, 21614840, 24275128, 24303890, 26031070, 28099292, 30343910, 35124115, 39447083, 48607780, 52062140, 56198584, 60687820, 70248230, 78894166, 97215560, 104124280, 121375640, 140496460, 157788332, 197235415, 280992920, 315576664, 394470830, 512812079, 788941660, 1025624158, 1577883320, 2051248316, 2564060395, 4102496632, 5128120790, 10256241580, 20512483160]

約数ペア:

[(1, 20512483160), (2, 10256241580), (4, 5128120790), (5, 4102496632), (8, 2564060395), (10, 2051248316), (13, 1577883320), (20, 1025624158), (26, 788941660), (40, 512812079), (52, 394470830), (65, 315576664), (73, 280992920), (104, 197235415), (130, 157788332), (146, 140496460), (169, 121375640), (197, 104124280), (211, 97215560), (260, 78894166), (292, 70248230), (338, 60687820), (365, 56198584), (394, 52062140), (422, 48607780), (520, 39447083), (584, 35124115), (676, 30343910), (730, 28099292), (788, 26031070), (844, 24303890), (845, 24275128), (949, 21614840), (985, 20824856), (1055, 19443112), (1352, 15171955), (1460, 14049646), (1576, 13015535), (1688, 12151945), (1690, 12137564), (1898, 10807420), (1970, 10412428), (2110, 9721556), (2561, 8009560), (2743, 7478120), (2920, 7024823), (3380, 6068782), (3796, 5403710), (3940, 5206214), (4220, 4860778), (4745, 4322968), (5122, 4004780), (5486, 3739060), (6760, 3034391), (7592, 2701855), (7880, 2603107), (8440, 2430389), (9490, 2161484), (10244, 2002390), (10972, 1869530), (12337, 1662680), (12805, 1601912), (13715, 1495624), (14381, 1426360), (15403, 1331720), (18980, 1080742), (20488, 1001195), (21944, 934765), (24674, 831340), (25610, 800956), (27430, 747812), (28762, 713180), (30806, 665860), (33293, 616120), (35659, 575240), (37960, 540371), (41567, 493480), (49348, 415670), (51220, 400478), (54860, 373906), (57524, 356590), (61612, 332930), (61685, 332536), (66586, 308060), (71318, 287620), (71905, 285272), (77015, 266344), (83134, 246740), (98696, 207835), (102440, 200239), (109720, 186953), (115048, 178295), (123224, 166465), (123370, 166268), (133172, 154030), (142636, 143810)]