31005585

素因数分解:

$3^5\times 5^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1$

素因数の和:197

約数の個数: 72

約数和(自身を含む): 60750144

約数和(自身を除く): 29744559

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 65, 81, 117, 135, 151, 169, 195, 243, 351, 405, 453, 507, 585, 755, 845, 1053, 1215, 1359, 1521, 1755, 1963, 2265, 2535, 3159, 4077, 4563, 5265, 5889, 6795, 7605, 9815, 12231, 13689, 15795, 17667, 20385, 22815, 25519, 29445, 36693, 41067, 53001, 61155, 68445, 76557, 88335, 127595, 159003, 183465, 205335, 229671, 265005, 382785, 477009, 689013, 795015, 1148355, 2067039, 2385045, 3445065, 6201117, 10335195, 31005585]

約数ペア:

[(1, 31005585), (3, 10335195), (5, 6201117), (9, 3445065), (13, 2385045), (15, 2067039), (27, 1148355), (39, 795015), (45, 689013), (65, 477009), (81, 382785), (117, 265005), (135, 229671), (151, 205335), (169, 183465), (195, 159003), (243, 127595), (351, 88335), (405, 76557), (453, 68445), (507, 61155), (585, 53001), (755, 41067), (845, 36693), (1053, 29445), (1215, 25519), (1359, 22815), (1521, 20385), (1755, 17667), (1963, 15795), (2265, 13689), (2535, 12231), (3159, 9815), (4077, 7605), (4563, 6795), (5265, 5889)]