72501980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1\times {\mathrm{569}}^1$

素因数の和:878

約数の個数: 48

約数和(自身を含む): 159727680

約数和(自身を除く): 87225700

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 277, 460, 554, 569, 1108, 1138, 1385, 2276, 2770, 2845, 5540, 5690, 6371, 11380, 12742, 13087, 25484, 26174, 31855, 52348, 63710, 65435, 127420, 130870, 157613, 261740, 315226, 630452, 788065, 1576130, 3152260, 3625099, 7250198, 14500396, 18125495, 36250990, 72501980]

約数ペア:

[(1, 72501980), (2, 36250990), (4, 18125495), (5, 14500396), (10, 7250198), (20, 3625099), (23, 3152260), (46, 1576130), (92, 788065), (115, 630452), (230, 315226), (277, 261740), (460, 157613), (554, 130870), (569, 127420), (1108, 65435), (1138, 63710), (1385, 52348), (2276, 31855), (2770, 26174), (2845, 25484), (5540, 13087), (5690, 12742), (6371, 11380)]