28474760

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{9011}}^1$

素因数の和:9101

約数の個数: 32

約数和(自身を含む): 64886400

約数和(自身を除く): 36411640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 9011, 18022, 36044, 45055, 72088, 90110, 180220, 360440, 711869, 1423738, 2847476, 3559345, 5694952, 7118690, 14237380, 28474760]

約数ペア:

[(1, 28474760), (2, 14237380), (4, 7118690), (5, 5694952), (8, 3559345), (10, 2847476), (20, 1423738), (40, 711869), (79, 360440), (158, 180220), (316, 90110), (395, 72088), (632, 45055), (790, 36044), (1580, 18022), (3160, 9011)]