728021275

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{569}}^1\times {\mathrm{839}}^1$

素因数の和:1479

約数の個数: 24

約数和(自身を含む): 920253600

約数和(自身を除く): 192232325

約数列:

[1, 5, 25, 61, 305, 569, 839, 1525, 2845, 4195, 14225, 20975, 34709, 51179, 173545, 255895, 477391, 867725, 1279475, 2386955, 11934775, 29120851, 145604255, 728021275]

約数ペア:

[(1, 728021275), (5, 145604255), (25, 29120851), (61, 11934775), (305, 2386955), (569, 1279475), (839, 867725), (1525, 477391), (2845, 255895), (4195, 173545), (14225, 51179), (20975, 34709)]