31288725

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:611

約数の個数: 72

約数和(自身を含む): 63641760

約数和(自身を除く): 32353035

約数列:

[1, 3, 5, 9, 13, 15, 19, 25, 39, 45, 57, 65, 75, 95, 117, 171, 195, 225, 247, 285, 325, 475, 563, 585, 741, 855, 975, 1235, 1425, 1689, 2223, 2815, 2925, 3705, 4275, 5067, 6175, 7319, 8445, 10697, 11115, 14075, 18525, 21957, 25335, 32091, 36595, 42225, 53485, 55575, 65871, 96273, 109785, 126675, 139061, 160455, 182975, 267425, 329355, 417183, 481365, 548925, 695305, 802275, 1251549, 1646775, 2085915, 2406825, 3476525, 6257745, 10429575, 31288725]

約数ペア:

[(1, 31288725), (3, 10429575), (5, 6257745), (9, 3476525), (13, 2406825), (15, 2085915), (19, 1646775), (25, 1251549), (39, 802275), (45, 695305), (57, 548925), (65, 481365), (75, 417183), (95, 329355), (117, 267425), (171, 182975), (195, 160455), (225, 139061), (247, 126675), (285, 109785), (325, 96273), (475, 65871), (563, 55575), (585, 53485), (741, 42225), (855, 36595), (975, 32091), (1235, 25335), (1425, 21957), (1689, 18525), (2223, 14075), (2815, 11115), (2925, 10697), (3705, 8445), (4275, 7319), (5067, 6175)]