31938075

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:269

約数の個数: 72

約数和(自身を含む): 62964720

約数和(自身を除く): 31026645

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 61, 65, 75, 117, 179, 183, 195, 225, 305, 325, 537, 549, 585, 793, 895, 915, 975, 1525, 1611, 2327, 2379, 2685, 2745, 2925, 3965, 4475, 4575, 6981, 7137, 8055, 10919, 11635, 11895, 13425, 13725, 19825, 20943, 32757, 34905, 35685, 40275, 54595, 58175, 59475, 98271, 104715, 141947, 163785, 174525, 178425, 272975, 425841, 491355, 523575, 709735, 818925, 1277523, 2129205, 2456775, 3548675, 6387615, 10646025, 31938075]

約数ペア:

[(1, 31938075), (3, 10646025), (5, 6387615), (9, 3548675), (13, 2456775), (15, 2129205), (25, 1277523), (39, 818925), (45, 709735), (61, 523575), (65, 491355), (75, 425841), (117, 272975), (179, 178425), (183, 174525), (195, 163785), (225, 141947), (305, 104715), (325, 98271), (537, 59475), (549, 58175), (585, 54595), (793, 40275), (895, 35685), (915, 34905), (975, 32757), (1525, 20943), (1611, 19825), (2327, 13725), (2379, 13425), (2685, 11895), (2745, 11635), (2925, 10919), (3965, 8055), (4475, 7137), (4575, 6981)]