31111730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2689}}^1$

素因数の和:2798

約数の個数: 32

約数和(自身を含む): 61009200

約数和(自身を除く): 29897470

約数列:

[1, 2, 5, 10, 13, 26, 65, 89, 130, 178, 445, 890, 1157, 2314, 2689, 5378, 5785, 11570, 13445, 26890, 34957, 69914, 174785, 239321, 349570, 478642, 1196605, 2393210, 3111173, 6222346, 15555865, 31111730]

約数ペア:

[(1, 31111730), (2, 15555865), (5, 6222346), (10, 3111173), (13, 2393210), (26, 1196605), (65, 478642), (89, 349570), (130, 239321), (178, 174785), (445, 69914), (890, 34957), (1157, 26890), (2314, 13445), (2689, 11570), (5378, 5785)]