31487300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{457}}^1$

素因数の和:537

約数の個数: 72

約数和(自身を含む): 75135816

約数和(自身を除く): 43648516

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 53, 65, 100, 106, 130, 212, 260, 265, 325, 457, 530, 650, 689, 914, 1060, 1300, 1325, 1378, 1828, 2285, 2650, 2756, 3445, 4570, 5300, 5941, 6890, 9140, 11425, 11882, 13780, 17225, 22850, 23764, 24221, 29705, 34450, 45700, 48442, 59410, 68900, 96884, 118820, 121105, 148525, 242210, 297050, 314873, 484420, 594100, 605525, 629746, 1211050, 1259492, 1574365, 2422100, 3148730, 6297460, 7871825, 15743650, 31487300]

約数ペア:

[(1, 31487300), (2, 15743650), (4, 7871825), (5, 6297460), (10, 3148730), (13, 2422100), (20, 1574365), (25, 1259492), (26, 1211050), (50, 629746), (52, 605525), (53, 594100), (65, 484420), (100, 314873), (106, 297050), (130, 242210), (212, 148525), (260, 121105), (265, 118820), (325, 96884), (457, 68900), (530, 59410), (650, 48442), (689, 45700), (914, 34450), (1060, 29705), (1300, 24221), (1325, 23764), (1378, 22850), (1828, 17225), (2285, 13780), (2650, 11882), (2756, 11425), (3445, 9140), (4570, 6890), (5300, 5941)]