64472440

素因数分解:

$2^3\times 5^1\times {\mathrm{1237}}^1\times {\mathrm{1303}}^1$

素因数の和:2551

約数の個数: 32

約数和(自身を含む): 145291680

約数和(自身を除く): 80819240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1237, 1303, 2474, 2606, 4948, 5212, 6185, 6515, 9896, 10424, 12370, 13030, 24740, 26060, 49480, 52120, 1611811, 3223622, 6447244, 8059055, 12894488, 16118110, 32236220, 64472440]

約数ペア:

[(1, 64472440), (2, 32236220), (4, 16118110), (5, 12894488), (8, 8059055), (10, 6447244), (20, 3223622), (40, 1611811), (1237, 52120), (1303, 49480), (2474, 26060), (2606, 24740), (4948, 13030), (5212, 12370), (6185, 10424), (6515, 9896)]