72983740

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{499}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 157248000

約数和(自身を除く): 84264260

約数列:

[1, 2, 4, 5, 10, 20, 71, 103, 142, 206, 284, 355, 412, 499, 515, 710, 998, 1030, 1420, 1996, 2060, 2495, 4990, 7313, 9980, 14626, 29252, 35429, 36565, 51397, 70858, 73130, 102794, 141716, 146260, 177145, 205588, 256985, 354290, 513970, 708580, 1027940, 3649187, 7298374, 14596748, 18245935, 36491870, 72983740]

約数ペア:

[(1, 72983740), (2, 36491870), (4, 18245935), (5, 14596748), (10, 7298374), (20, 3649187), (71, 1027940), (103, 708580), (142, 513970), (206, 354290), (284, 256985), (355, 205588), (412, 177145), (499, 146260), (515, 141716), (710, 102794), (998, 73130), (1030, 70858), (1420, 51397), (1996, 36565), (2060, 35429), (2495, 29252), (4990, 14626), (7313, 9980)]