20432880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:128

約数の個数: 240

約数和(自身を含む): 77182560

約数和(自身を除く): 56749680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 37, 39, 40, 45, 48, 52, 59, 60, 65, 72, 74, 78, 80, 90, 104, 111, 117, 118, 120, 130, 144, 148, 156, 177, 180, 185, 195, 208, 222, 234, 236, 240, 260, 295, 296, 312, 333, 354, 360, 370, 390, 444, 468, 472, 481, 520, 531, 555, 585, 590, 592, 624, 666, 708, 720, 740, 767, 780, 885, 888, 936, 944, 962, 1040, 1062, 1110, 1170, 1180, 1332, 1416, 1443, 1480, 1534, 1560, 1665, 1770, 1776, 1872, 1924, 2124, 2183, 2220, 2301, 2340, 2360, 2405, 2655, 2664, 2832, 2886, 2960, 3068, 3120, 3330, 3540, 3835, 3848, 4248, 4329, 4366, 4440, 4602, 4680, 4720, 4810, 5310, 5328, 5772, 6136, 6549, 6660, 6903, 7080, 7215, 7670, 7696, 8496, 8658, 8732, 8880, 9204, 9360, 9620, 10620, 10915, 11505, 11544, 12272, 13098, 13320, 13806, 14160, 14430, 15340, 17316, 17464, 18408, 19240, 19647, 21240, 21645, 21830, 23010, 23088, 26196, 26640, 27612, 28379, 28860, 30680, 32745, 34515, 34632, 34928, 36816, 38480, 39294, 42480, 43290, 43660, 46020, 52392, 55224, 56758, 57720, 61360, 65490, 69030, 69264, 78588, 85137, 86580, 87320, 92040, 98235, 104784, 110448, 113516, 115440, 130980, 138060, 141895, 157176, 170274, 173160, 174640, 184080, 196470, 227032, 255411, 261960, 276120, 283790, 314352, 340548, 346320, 392940, 425685, 454064, 510822, 523920, 552240, 567580, 681096, 785880, 851370, 1021644, 1135160, 1277055, 1362192, 1571760, 1702740, 2043288, 2270320, 2554110, 3405480, 4086576, 5108220, 6810960, 10216440, 20432880]

約数ペア:

[(1, 20432880), (2, 10216440), (3, 6810960), (4, 5108220), (5, 4086576), (6, 3405480), (8, 2554110), (9, 2270320), (10, 2043288), (12, 1702740), (13, 1571760), (15, 1362192), (16, 1277055), (18, 1135160), (20, 1021644), (24, 851370), (26, 785880), (30, 681096), (36, 567580), (37, 552240), (39, 523920), (40, 510822), (45, 454064), (48, 425685), (52, 392940), (59, 346320), (60, 340548), (65, 314352), (72, 283790), (74, 276120), (78, 261960), (80, 255411), (90, 227032), (104, 196470), (111, 184080), (117, 174640), (118, 173160), (120, 170274), (130, 157176), (144, 141895), (148, 138060), (156, 130980), (177, 115440), (180, 113516), (185, 110448), (195, 104784), (208, 98235), (222, 92040), (234, 87320), (236, 86580), (240, 85137), (260, 78588), (295, 69264), (296, 69030), (312, 65490), (333, 61360), (354, 57720), (360, 56758), (370, 55224), (390, 52392), (444, 46020), (468, 43660), (472, 43290), (481, 42480), (520, 39294), (531, 38480), (555, 36816), (585, 34928), (590, 34632), (592, 34515), (624, 32745), (666, 30680), (708, 28860), (720, 28379), (740, 27612), (767, 26640), (780, 26196), (885, 23088), (888, 23010), (936, 21830), (944, 21645), (962, 21240), (1040, 19647), (1062, 19240), (1110, 18408), (1170, 17464), (1180, 17316), (1332, 15340), (1416, 14430), (1443, 14160), (1480, 13806), (1534, 13320), (1560, 13098), (1665, 12272), (1770, 11544), (1776, 11505), (1872, 10915), (1924, 10620), (2124, 9620), (2183, 9360), (2220, 9204), (2301, 8880), (2340, 8732), (2360, 8658), (2405, 8496), (2655, 7696), (2664, 7670), (2832, 7215), (2886, 7080), (2960, 6903), (3068, 6660), (3120, 6549), (3330, 6136), (3540, 5772), (3835, 5328), (3848, 5310), (4248, 4810), (4329, 4720), (4366, 4680), (4440, 4602)]