218700860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{25609}}^1$

素因数の和:25686

約数の個数: 48

約数和(自身を含む): 533507520

約数和(自身を除く): 314806660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 1220, 1708, 2135, 4270, 8540, 25609, 51218, 102436, 128045, 179263, 256090, 358526, 512180, 717052, 896315, 1562149, 1792630, 3124298, 3585260, 6248596, 7810745, 10935043, 15621490, 21870086, 31242980, 43740172, 54675215, 109350430, 218700860]

約数ペア:

[(1, 218700860), (2, 109350430), (4, 54675215), (5, 43740172), (7, 31242980), (10, 21870086), (14, 15621490), (20, 10935043), (28, 7810745), (35, 6248596), (61, 3585260), (70, 3124298), (122, 1792630), (140, 1562149), (244, 896315), (305, 717052), (427, 512180), (610, 358526), (854, 256090), (1220, 179263), (1708, 128045), (2135, 102436), (4270, 51218), (8540, 25609)]