71240420

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{27191}}^1$

素因数の和:27331

約数の個数: 24

約数和(自身を含む): 150752448

約数和(自身を除く): 79512028

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 27191, 54382, 108764, 135955, 271910, 543820, 3562021, 7124042, 14248084, 17810105, 35620210, 71240420]

約数ペア:

[(1, 71240420), (2, 35620210), (4, 17810105), (5, 14248084), (10, 7124042), (20, 3562021), (131, 543820), (262, 271910), (524, 135955), (655, 108764), (1310, 54382), (2620, 27191)]