215305480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{414049}}^1$

素因数の和:414073

約数の個数: 32

約数和(自身を含む): 521703000

約数和(自身を除く): 306397520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 414049, 828098, 1656196, 2070245, 3312392, 4140490, 5382637, 8280980, 10765274, 16561960, 21530548, 26913185, 43061096, 53826370, 107652740, 215305480]

約数ペア:

[(1, 215305480), (2, 107652740), (4, 53826370), (5, 43061096), (8, 26913185), (10, 21530548), (13, 16561960), (20, 10765274), (26, 8280980), (40, 5382637), (52, 4140490), (65, 3312392), (104, 2070245), (130, 1656196), (260, 828098), (520, 414049)]