68640250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{643}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 149490432

約数和(自身を除く): 80850182

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 61, 70, 122, 125, 175, 250, 305, 350, 427, 610, 643, 854, 875, 1286, 1525, 1750, 2135, 3050, 3215, 4270, 4501, 6430, 7625, 9002, 10675, 15250, 16075, 21350, 22505, 32150, 39223, 45010, 53375, 78446, 80375, 106750, 112525, 160750, 196115, 225050, 274561, 392230, 549122, 562625, 980575, 1125250, 1372805, 1961150, 2745610, 4902875, 6864025, 9805750, 13728050, 34320125, 68640250]

約数ペア:

[(1, 68640250), (2, 34320125), (5, 13728050), (7, 9805750), (10, 6864025), (14, 4902875), (25, 2745610), (35, 1961150), (50, 1372805), (61, 1125250), (70, 980575), (122, 562625), (125, 549122), (175, 392230), (250, 274561), (305, 225050), (350, 196115), (427, 160750), (610, 112525), (643, 106750), (854, 80375), (875, 78446), (1286, 53375), (1525, 45010), (1750, 39223), (2135, 32150), (3050, 22505), (3215, 21350), (4270, 16075), (4501, 15250), (6430, 10675), (7625, 9002)]