1252813720

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{304081}}^1$

素因数の和:304195

約数の個数: 32

約数和(自身を含む): 2846207520

約数和(自身を除く): 1593393800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 304081, 608162, 1216324, 1520405, 2432648, 3040810, 6081620, 12163240, 31320343, 62640686, 125281372, 156601715, 250562744, 313203430, 626406860, 1252813720]

約数ペア:

[(1, 1252813720), (2, 626406860), (4, 313203430), (5, 250562744), (8, 156601715), (10, 125281372), (20, 62640686), (40, 31320343), (103, 12163240), (206, 6081620), (412, 3040810), (515, 2432648), (824, 1520405), (1030, 1216324), (2060, 608162), (4120, 304081)]