8236540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{401}}^1$

素因数の和:502

約数の個数: 48

約数和(自身を含む): 18910080

約数和(自身を除く): 10673540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 401, 790, 802, 1027, 1580, 1604, 2005, 2054, 4010, 4108, 5135, 5213, 8020, 10270, 10426, 20540, 20852, 26065, 31679, 52130, 63358, 104260, 126716, 158395, 316790, 411827, 633580, 823654, 1647308, 2059135, 4118270, 8236540]

約数ペア:

[(1, 8236540), (2, 4118270), (4, 2059135), (5, 1647308), (10, 823654), (13, 633580), (20, 411827), (26, 316790), (52, 158395), (65, 126716), (79, 104260), (130, 63358), (158, 52130), (260, 31679), (316, 26065), (395, 20852), (401, 20540), (790, 10426), (802, 10270), (1027, 8020), (1580, 5213), (1604, 5135), (2005, 4108), (2054, 4010)]