20129557750

素因数分解:

$2^1\times 5^3\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{30697}}^1$

素因数の和:30818

約数の個数: 64

約数和(自身を含む): 39192259392

約数和(自身を除く): 19062701642

約数列:

[1, 2, 5, 10, 25, 43, 50, 61, 86, 122, 125, 215, 250, 305, 430, 610, 1075, 1525, 2150, 2623, 3050, 5246, 5375, 7625, 10750, 13115, 15250, 26230, 30697, 61394, 65575, 131150, 153485, 306970, 327875, 655750, 767425, 1319971, 1534850, 1872517, 2639942, 3745034, 3837125, 6599855, 7674250, 9362585, 13199710, 18725170, 32999275, 46812925, 65998550, 80518231, 93625850, 161036462, 164996375, 234064625, 329992750, 402591155, 468129250, 805182310, 2012955775, 4025911550, 10064778875, 20129557750]

約数ペア:

[(1, 20129557750), (2, 10064778875), (5, 4025911550), (10, 2012955775), (25, 805182310), (43, 468129250), (50, 402591155), (61, 329992750), (86, 234064625), (122, 164996375), (125, 161036462), (215, 93625850), (250, 80518231), (305, 65998550), (430, 46812925), (610, 32999275), (1075, 18725170), (1525, 13199710), (2150, 9362585), (2623, 7674250), (3050, 6599855), (5246, 3837125), (5375, 3745034), (7625, 2639942), (10750, 1872517), (13115, 1534850), (15250, 1319971), (26230, 767425), (30697, 655750), (61394, 327875), (65575, 306970), (131150, 153485)]