61420360

素因数分解:

$2^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{4639}}^1$

素因数の和:4981

約数の個数: 32

約数和(自身を含む): 138643200

約数和(自身を除く): 77222840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 331, 662, 1324, 1655, 2648, 3310, 4639, 6620, 9278, 13240, 18556, 23195, 37112, 46390, 92780, 185560, 1535509, 3071018, 6142036, 7677545, 12284072, 15355090, 30710180, 61420360]

約数ペア:

[(1, 61420360), (2, 30710180), (4, 15355090), (5, 12284072), (8, 7677545), (10, 6142036), (20, 3071018), (40, 1535509), (331, 185560), (662, 92780), (1324, 46390), (1655, 37112), (2648, 23195), (3310, 18556), (4639, 13240), (6620, 9278)]