54721720

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{17317}}^1$

素因数の和:17407

約数の個数: 32

約数和(自身を含む): 124689600

約数和(自身を除く): 69967880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 17317, 34634, 69268, 86585, 138536, 173170, 346340, 692680, 1368043, 2736086, 5472172, 6840215, 10944344, 13680430, 27360860, 54721720]

約数ペア:

[(1, 54721720), (2, 27360860), (4, 13680430), (5, 10944344), (8, 6840215), (10, 5472172), (20, 2736086), (40, 1368043), (79, 692680), (158, 346340), (316, 173170), (395, 138536), (632, 86585), (790, 69268), (1580, 34634), (3160, 17317)]