28497680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11491}}^1$

素因数の和:11535

約数の個数: 40

約数和(自身を含む): 68400384

約数和(自身を除く): 39902704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 11491, 22982, 45964, 57455, 91928, 114910, 183856, 229820, 356221, 459640, 712442, 919280, 1424884, 1781105, 2849768, 3562210, 5699536, 7124420, 14248840, 28497680]

約数ペア:

[(1, 28497680), (2, 14248840), (4, 7124420), (5, 5699536), (8, 3562210), (10, 2849768), (16, 1781105), (20, 1424884), (31, 919280), (40, 712442), (62, 459640), (80, 356221), (124, 229820), (155, 183856), (248, 114910), (310, 91928), (496, 57455), (620, 45964), (1240, 22982), (2480, 11491)]