2981560

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{569}}^1$

素因数の和:711

約数の個数: 32

約数和(自身を含む): 6771600

約数和(自身を除く): 3790040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 569, 655, 1048, 1138, 1310, 2276, 2620, 2845, 4552, 5240, 5690, 11380, 22760, 74539, 149078, 298156, 372695, 596312, 745390, 1490780, 2981560]

約数ペア:

[(1, 2981560), (2, 1490780), (4, 745390), (5, 596312), (8, 372695), (10, 298156), (20, 149078), (40, 74539), (131, 22760), (262, 11380), (524, 5690), (569, 5240), (655, 4552), (1048, 2845), (1138, 2620), (1310, 2276)]