61690480

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10861}}^1$

素因数の和:10945

約数の個数: 40

約数和(自身を含む): 145463904

約数和(自身を除く): 83773424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 10861, 21722, 43444, 54305, 86888, 108610, 173776, 217220, 434440, 771131, 868880, 1542262, 3084524, 3855655, 6169048, 7711310, 12338096, 15422620, 30845240, 61690480]

約数ペア:

[(1, 61690480), (2, 30845240), (4, 15422620), (5, 12338096), (8, 7711310), (10, 6169048), (16, 3855655), (20, 3084524), (40, 1542262), (71, 868880), (80, 771131), (142, 434440), (284, 217220), (355, 173776), (568, 108610), (710, 86888), (1136, 54305), (1420, 43444), (2840, 21722), (5680, 10861)]