193788820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{136471}}^1$

素因数の和:136551

約数の個数: 24

約数和(自身を含む): 412691328

約数和(自身を除く): 218902508

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 136471, 272942, 545884, 682355, 1364710, 2729420, 9689441, 19378882, 38757764, 48447205, 96894410, 193788820]

約数ペア:

[(1, 193788820), (2, 96894410), (4, 48447205), (5, 38757764), (10, 19378882), (20, 9689441), (71, 2729420), (142, 1364710), (284, 682355), (355, 545884), (710, 272942), (1420, 136471)]