636735580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1423}}^1\times {\mathrm{1721}}^1$

素因数の和:3166

約数の個数: 48

約数和(自身を含む): 1441851264

約数和(自身を除く): 805115684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1423, 1721, 2846, 3442, 5692, 6884, 7115, 8605, 14230, 17210, 18499, 22373, 28460, 34420, 36998, 44746, 73996, 89492, 92495, 111865, 184990, 223730, 369980, 447460, 2448983, 4897966, 9795932, 12244915, 24489830, 31836779, 48979660, 63673558, 127347116, 159183895, 318367790, 636735580]

約数ペア:

[(1, 636735580), (2, 318367790), (4, 159183895), (5, 127347116), (10, 63673558), (13, 48979660), (20, 31836779), (26, 24489830), (52, 12244915), (65, 9795932), (130, 4897966), (260, 2448983), (1423, 447460), (1721, 369980), (2846, 223730), (3442, 184990), (5692, 111865), (6884, 92495), (7115, 89492), (8605, 73996), (14230, 44746), (17210, 36998), (18499, 34420), (22373, 28460)]