238971920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{443}}^1\times {\mathrm{613}}^1$

素因数の和:1080

約数の個数: 80

約数和(自身を含む): 608478912

約数和(自身を除く): 369506992

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 443, 613, 880, 886, 1226, 1772, 2215, 2452, 3065, 3544, 4430, 4873, 4904, 6130, 6743, 7088, 8860, 9746, 9808, 12260, 13486, 17720, 19492, 24365, 24520, 26972, 33715, 35440, 38984, 48730, 49040, 53944, 67430, 77968, 97460, 107888, 134860, 194920, 269720, 271559, 389840, 539440, 543118, 1086236, 1357795, 2172472, 2715590, 2987149, 4344944, 5431180, 5974298, 10862360, 11948596, 14935745, 21724720, 23897192, 29871490, 47794384, 59742980, 119485960, 238971920]

約数ペア:

[(1, 238971920), (2, 119485960), (4, 59742980), (5, 47794384), (8, 29871490), (10, 23897192), (11, 21724720), (16, 14935745), (20, 11948596), (22, 10862360), (40, 5974298), (44, 5431180), (55, 4344944), (80, 2987149), (88, 2715590), (110, 2172472), (176, 1357795), (220, 1086236), (440, 543118), (443, 539440), (613, 389840), (880, 271559), (886, 269720), (1226, 194920), (1772, 134860), (2215, 107888), (2452, 97460), (3065, 77968), (3544, 67430), (4430, 53944), (4873, 49040), (4904, 48730), (6130, 38984), (6743, 35440), (7088, 33715), (8860, 26972), (9746, 24520), (9808, 24365), (12260, 19492), (13486, 17720)]