71913335

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{401}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 97251840

約数和(自身を除く): 25338505

約数列:

[1, 5, 13, 31, 65, 89, 155, 401, 403, 445, 1157, 2005, 2015, 2759, 5213, 5785, 12431, 13795, 26065, 35689, 35867, 62155, 161603, 178445, 179335, 463957, 808015, 1106359, 2319785, 5531795, 14382667, 71913335]

約数ペア:

[(1, 71913335), (5, 14382667), (13, 5531795), (31, 2319785), (65, 1106359), (89, 808015), (155, 463957), (401, 179335), (403, 178445), (445, 161603), (1157, 62155), (2005, 35867), (2015, 35689), (2759, 26065), (5213, 13795), (5785, 12431)]