204860920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{1051}}^1$

素因数の和:1516

約数の個数: 64

約数和(自身を含む): 504455040

約数和(自身を除く): 299594120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 443, 886, 1051, 1772, 2102, 2215, 3544, 4204, 4430, 4873, 5255, 8408, 8860, 9746, 10510, 11561, 17720, 19492, 21020, 23122, 24365, 38984, 42040, 46244, 48730, 57805, 92488, 97460, 115610, 194920, 231220, 462440, 465593, 931186, 1862372, 2327965, 3724744, 4655930, 5121523, 9311860, 10243046, 18623720, 20486092, 25607615, 40972184, 51215230, 102430460, 204860920]

約数ペア:

[(1, 204860920), (2, 102430460), (4, 51215230), (5, 40972184), (8, 25607615), (10, 20486092), (11, 18623720), (20, 10243046), (22, 9311860), (40, 5121523), (44, 4655930), (55, 3724744), (88, 2327965), (110, 1862372), (220, 931186), (440, 465593), (443, 462440), (886, 231220), (1051, 194920), (1772, 115610), (2102, 97460), (2215, 92488), (3544, 57805), (4204, 48730), (4430, 46244), (4873, 42040), (5255, 38984), (8408, 24365), (8860, 23122), (9746, 21020), (10510, 19492), (11561, 17720)]