129078740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{131713}}^1$

素因数の和:131736

約数の個数: 36

約数和(自身を含む): 315323316

約数和(自身を除く): 186244576

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 131713, 263426, 526852, 658565, 921991, 1317130, 1843982, 2634260, 3687964, 4609955, 6453937, 9219910, 12907874, 18439820, 25815748, 32269685, 64539370, 129078740]

約数ペア:

[(1, 129078740), (2, 64539370), (4, 32269685), (5, 25815748), (7, 18439820), (10, 12907874), (14, 9219910), (20, 6453937), (28, 4609955), (35, 3687964), (49, 2634260), (70, 1843982), (98, 1317130), (140, 921991), (196, 658565), (245, 526852), (490, 263426), (980, 131713)]