64876720

素因数分解:

$2^4\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1499}}^1$

素因数の和:2053

約数の個数: 40

約数和(自身を含む): 151218000

約数和(自身を除く): 86341280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 541, 1082, 1499, 2164, 2705, 2998, 4328, 5410, 5996, 7495, 8656, 10820, 11992, 14990, 21640, 23984, 29980, 43280, 59960, 119920, 810959, 1621918, 3243836, 4054795, 6487672, 8109590, 12975344, 16219180, 32438360, 64876720]

約数ペア:

[(1, 64876720), (2, 32438360), (4, 16219180), (5, 12975344), (8, 8109590), (10, 6487672), (16, 4054795), (20, 3243836), (40, 1621918), (80, 810959), (541, 119920), (1082, 59960), (1499, 43280), (2164, 29980), (2705, 23984), (2998, 21640), (4328, 14990), (5410, 11992), (5996, 10820), (7495, 8656)]