18900750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:139

約数の個数: 128

約数和(自身を含む): 53913600

約数和(自身を除く): 35012850

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 29, 30, 33, 50, 55, 58, 66, 75, 79, 87, 110, 125, 145, 150, 158, 165, 174, 237, 250, 275, 290, 319, 330, 375, 395, 435, 474, 550, 638, 725, 750, 790, 825, 869, 870, 957, 1185, 1375, 1450, 1595, 1650, 1738, 1914, 1975, 2175, 2291, 2370, 2607, 2750, 3190, 3625, 3950, 4125, 4345, 4350, 4582, 4785, 5214, 5925, 6873, 7250, 7975, 8250, 8690, 9570, 9875, 10875, 11455, 11850, 13035, 13746, 15950, 19750, 21725, 21750, 22910, 23925, 25201, 26070, 29625, 34365, 39875, 43450, 47850, 50402, 57275, 59250, 65175, 68730, 75603, 79750, 108625, 114550, 119625, 126005, 130350, 151206, 171825, 217250, 239250, 252010, 286375, 325875, 343650, 378015, 572750, 630025, 651750, 756030, 859125, 1260050, 1718250, 1890075, 3150125, 3780150, 6300250, 9450375, 18900750]

約数ペア:

[(1, 18900750), (2, 9450375), (3, 6300250), (5, 3780150), (6, 3150125), (10, 1890075), (11, 1718250), (15, 1260050), (22, 859125), (25, 756030), (29, 651750), (30, 630025), (33, 572750), (50, 378015), (55, 343650), (58, 325875), (66, 286375), (75, 252010), (79, 239250), (87, 217250), (110, 171825), (125, 151206), (145, 130350), (150, 126005), (158, 119625), (165, 114550), (174, 108625), (237, 79750), (250, 75603), (275, 68730), (290, 65175), (319, 59250), (330, 57275), (375, 50402), (395, 47850), (435, 43450), (474, 39875), (550, 34365), (638, 29625), (725, 26070), (750, 25201), (790, 23925), (825, 22910), (869, 21750), (870, 21725), (957, 19750), (1185, 15950), (1375, 13746), (1450, 13035), (1595, 11850), (1650, 11455), (1738, 10875), (1914, 9875), (1975, 9570), (2175, 8690), (2291, 8250), (2370, 7975), (2607, 7250), (2750, 6873), (3190, 5925), (3625, 5214), (3950, 4785), (4125, 4582), (4345, 4350)]