7681490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:458

約数の個数: 32

約数和(自身を含む): 14515200

約数和(自身を除く): 6833710

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 349, 355, 698, 710, 1745, 2201, 3490, 4402, 10819, 11005, 21638, 22010, 24779, 49558, 54095, 108190, 123895, 247790, 768149, 1536298, 3840745, 7681490]

約数ペア:

[(1, 7681490), (2, 3840745), (5, 1536298), (10, 768149), (31, 247790), (62, 123895), (71, 108190), (142, 54095), (155, 49558), (310, 24779), (349, 22010), (355, 21638), (698, 11005), (710, 10819), (1745, 4402), (2201, 3490)]