80709740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1\times {\mathrm{373}}^1$

素因数の和:762

約数の個数: 48

約数和(自身を含む): 175929600

約数和(自身を除く): 95219860

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 349, 373, 620, 698, 746, 1396, 1492, 1745, 1865, 3490, 3730, 6980, 7460, 10819, 11563, 21638, 23126, 43276, 46252, 54095, 57815, 108190, 115630, 130177, 216380, 231260, 260354, 520708, 650885, 1301770, 2603540, 4035487, 8070974, 16141948, 20177435, 40354870, 80709740]

約数ペア:

[(1, 80709740), (2, 40354870), (4, 20177435), (5, 16141948), (10, 8070974), (20, 4035487), (31, 2603540), (62, 1301770), (124, 650885), (155, 520708), (310, 260354), (349, 231260), (373, 216380), (620, 130177), (698, 115630), (746, 108190), (1396, 57815), (1492, 54095), (1745, 46252), (1865, 43276), (3490, 23126), (3730, 21638), (6980, 11563), (7460, 10819)]