220815975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{173189}}^1$

素因数の和:173219

約数の個数: 24

約数和(自身を含む): 386560080

約数和(自身を除く): 165744105

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 173189, 519567, 865945, 2597835, 2944213, 4329725, 8832639, 12989175, 14721065, 44163195, 73605325, 220815975]

約数ペア:

[(1, 220815975), (3, 73605325), (5, 44163195), (15, 14721065), (17, 12989175), (25, 8832639), (51, 4329725), (75, 2944213), (85, 2597835), (255, 865945), (425, 519567), (1275, 173189)]