20210958980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{13757}}^1$

素因数の和:13961

約数の個数: 96

約数和(自身を含む): 46804716000

約数和(自身を除く): 26593757020

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 149, 170, 290, 298, 340, 493, 580, 596, 745, 986, 1490, 1972, 2465, 2533, 2980, 4321, 4930, 5066, 8642, 9860, 10132, 12665, 13757, 17284, 21605, 25330, 27514, 43210, 50660, 55028, 68785, 73457, 86420, 137570, 146914, 233869, 275140, 293828, 367285, 398953, 467738, 734570, 797906, 935476, 1169345, 1469140, 1595812, 1994765, 2049793, 2338690, 3989530, 4099586, 4677380, 6782201, 7979060, 8199172, 10248965, 13564402, 20497930, 27128804, 33911005, 34846481, 40995860, 59443997, 67822010, 69692962, 118887994, 135644020, 139385924, 174232405, 237775988, 297219985, 348464810, 594439970, 696929620, 1010547949, 1188879940, 2021095898, 4042191796, 5052739745, 10105479490, 20210958980]

約数ペア:

[(1, 20210958980), (2, 10105479490), (4, 5052739745), (5, 4042191796), (10, 2021095898), (17, 1188879940), (20, 1010547949), (29, 696929620), (34, 594439970), (58, 348464810), (68, 297219985), (85, 237775988), (116, 174232405), (145, 139385924), (149, 135644020), (170, 118887994), (290, 69692962), (298, 67822010), (340, 59443997), (493, 40995860), (580, 34846481), (596, 33911005), (745, 27128804), (986, 20497930), (1490, 13564402), (1972, 10248965), (2465, 8199172), (2533, 7979060), (2980, 6782201), (4321, 4677380), (4930, 4099586), (5066, 3989530), (8642, 2338690), (9860, 2049793), (10132, 1994765), (12665, 1595812), (13757, 1469140), (17284, 1169345), (21605, 935476), (25330, 797906), (27514, 734570), (43210, 467738), (50660, 398953), (55028, 367285), (68785, 293828), (73457, 275140), (86420, 233869), (137570, 146914)]