74917780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{7537}}^1$

素因数の和:7624

約数の個数: 48

約数和(自身を含む): 182359296

約数和(自身を除く): 107441516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 7537, 9940, 15074, 30148, 37685, 52759, 75370, 105518, 150740, 211036, 263795, 527590, 535127, 1055180, 1070254, 2140508, 2675635, 3745889, 5351270, 7491778, 10702540, 14983556, 18729445, 37458890, 74917780]

約数ペア:

[(1, 74917780), (2, 37458890), (4, 18729445), (5, 14983556), (7, 10702540), (10, 7491778), (14, 5351270), (20, 3745889), (28, 2675635), (35, 2140508), (70, 1070254), (71, 1055180), (140, 535127), (142, 527590), (284, 263795), (355, 211036), (497, 150740), (710, 105518), (994, 75370), (1420, 52759), (1988, 37685), (2485, 30148), (4970, 15074), (7537, 9940)]