641325

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{503}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 1124928

約数和(自身を除く): 483603

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 503, 1275, 1509, 2515, 7545, 8551, 12575, 25653, 37725, 42755, 128265, 213775, 641325]

約数ペア:

[(1, 641325), (3, 213775), (5, 128265), (15, 42755), (17, 37725), (25, 25653), (51, 12575), (75, 8551), (85, 7545), (255, 2515), (425, 1509), (503, 1275)]