64311260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{359}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 149415840

約数和(自身を除く): 85104580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 169, 212, 260, 265, 338, 359, 530, 676, 689, 718, 845, 1060, 1378, 1436, 1690, 1795, 2756, 3380, 3445, 3590, 4667, 6890, 7180, 8957, 9334, 13780, 17914, 18668, 19027, 23335, 35828, 38054, 44785, 46670, 60671, 76108, 89570, 93340, 95135, 121342, 179140, 190270, 242684, 247351, 303355, 380540, 494702, 606710, 989404, 1213420, 1236755, 2473510, 3215563, 4947020, 6431126, 12862252, 16077815, 32155630, 64311260]

約数ペア:

[(1, 64311260), (2, 32155630), (4, 16077815), (5, 12862252), (10, 6431126), (13, 4947020), (20, 3215563), (26, 2473510), (52, 1236755), (53, 1213420), (65, 989404), (106, 606710), (130, 494702), (169, 380540), (212, 303355), (260, 247351), (265, 242684), (338, 190270), (359, 179140), (530, 121342), (676, 95135), (689, 93340), (718, 89570), (845, 76108), (1060, 60671), (1378, 46670), (1436, 44785), (1690, 38054), (1795, 35828), (2756, 23335), (3380, 19027), (3445, 18668), (3590, 17914), (4667, 13780), (6890, 9334), (7180, 8957)]