68620825

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 110826240

約数和(自身を除く): 42205415

約数列:

[1, 5, 7, 13, 25, 31, 35, 49, 65, 91, 139, 155, 175, 217, 245, 325, 403, 455, 637, 695, 775, 973, 1085, 1225, 1519, 1807, 2015, 2275, 2821, 3185, 3475, 4309, 4865, 5425, 6811, 7595, 9035, 10075, 12649, 14105, 15925, 19747, 21545, 24325, 30163, 34055, 37975, 45175, 56017, 63245, 70525, 88543, 98735, 107725, 150815, 170275, 211141, 280085, 316225, 392119, 442715, 493675, 754075, 1055705, 1400425, 1960595, 2213575, 2744833, 5278525, 9802975, 13724165, 68620825]

約数ペア:

[(1, 68620825), (5, 13724165), (7, 9802975), (13, 5278525), (25, 2744833), (31, 2213575), (35, 1960595), (49, 1400425), (65, 1055705), (91, 754075), (139, 493675), (155, 442715), (175, 392119), (217, 316225), (245, 280085), (325, 211141), (403, 170275), (455, 150815), (637, 107725), (695, 98735), (775, 88543), (973, 70525), (1085, 63245), (1225, 56017), (1519, 45175), (1807, 37975), (2015, 34055), (2275, 30163), (2821, 24325), (3185, 21545), (3475, 19747), (4309, 15925), (4865, 14105), (5425, 12649), (6811, 10075), (7595, 9035)]