619720420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{6691}}^1$

素因数の和:7132

約数の個数: 48

約数和(自身を含む): 1423308096

約数和(自身を除く): 803587676

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 421, 842, 1684, 2105, 4210, 4631, 6691, 8420, 9262, 13382, 18524, 23155, 26764, 33455, 46310, 66910, 73601, 92620, 133820, 147202, 294404, 368005, 736010, 1472020, 2816911, 5633822, 11267644, 14084555, 28169110, 30986021, 56338220, 61972042, 123944084, 154930105, 309860210, 619720420]

約数ペア:

[(1, 619720420), (2, 309860210), (4, 154930105), (5, 123944084), (10, 61972042), (11, 56338220), (20, 30986021), (22, 28169110), (44, 14084555), (55, 11267644), (110, 5633822), (220, 2816911), (421, 1472020), (842, 736010), (1684, 368005), (2105, 294404), (4210, 147202), (4631, 133820), (6691, 92620), (8420, 73601), (9262, 66910), (13382, 46310), (18524, 33455), (23155, 26764)]