18229160

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 42886800

約数和(自身を除く): 24657640

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 109, 113, 148, 185, 218, 226, 296, 370, 436, 452, 545, 565, 740, 872, 904, 1090, 1130, 1480, 2180, 2260, 4033, 4181, 4360, 4520, 8066, 8362, 12317, 16132, 16724, 20165, 20905, 24634, 32264, 33448, 40330, 41810, 49268, 61585, 80660, 83620, 98536, 123170, 161320, 167240, 246340, 455729, 492680, 911458, 1822916, 2278645, 3645832, 4557290, 9114580, 18229160]

約数ペア:

[(1, 18229160), (2, 9114580), (4, 4557290), (5, 3645832), (8, 2278645), (10, 1822916), (20, 911458), (37, 492680), (40, 455729), (74, 246340), (109, 167240), (113, 161320), (148, 123170), (185, 98536), (218, 83620), (226, 80660), (296, 61585), (370, 49268), (436, 41810), (452, 40330), (545, 33448), (565, 32264), (740, 24634), (872, 20905), (904, 20165), (1090, 16724), (1130, 16132), (1480, 12317), (2180, 8362), (2260, 8066), (4033, 4520), (4181, 4360)]