81701990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{2633}}^1$

素因数の和:2776

約数の個数: 32

約数和(自身を含む): 153614880

約数和(自身を除く): 71912890

約数列:

[1, 2, 5, 10, 29, 58, 107, 145, 214, 290, 535, 1070, 2633, 3103, 5266, 6206, 13165, 15515, 26330, 31030, 76357, 152714, 281731, 381785, 563462, 763570, 1408655, 2817310, 8170199, 16340398, 40850995, 81701990]

約数ペア:

[(1, 81701990), (2, 40850995), (5, 16340398), (10, 8170199), (29, 2817310), (58, 1408655), (107, 763570), (145, 563462), (214, 381785), (290, 281731), (535, 152714), (1070, 76357), (2633, 31030), (3103, 26330), (5266, 15515), (6206, 13165)]