18893290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:223

約数の個数: 64

約数和(自身を含む): 39626496

約数和(自身を除く): 20733206

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 83, 85, 103, 130, 166, 170, 206, 221, 415, 442, 515, 830, 1030, 1079, 1105, 1339, 1411, 1751, 2158, 2210, 2678, 2822, 3502, 5395, 6695, 7055, 8549, 8755, 10790, 13390, 14110, 17098, 17510, 18343, 22763, 36686, 42745, 45526, 85490, 91715, 111137, 113815, 145333, 183430, 222274, 227630, 290666, 555685, 726665, 1111370, 1453330, 1889329, 3778658, 9446645, 18893290]

約数ペア:

[(1, 18893290), (2, 9446645), (5, 3778658), (10, 1889329), (13, 1453330), (17, 1111370), (26, 726665), (34, 555685), (65, 290666), (83, 227630), (85, 222274), (103, 183430), (130, 145333), (166, 113815), (170, 111137), (206, 91715), (221, 85490), (415, 45526), (442, 42745), (515, 36686), (830, 22763), (1030, 18343), (1079, 17510), (1105, 17098), (1339, 14110), (1411, 13390), (1751, 10790), (2158, 8755), (2210, 8549), (2678, 7055), (2822, 6695), (3502, 5395)]