64870020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1811}}^1$

素因数の和:2025

約数の個数: 72

約数和(自身を含む): 197870400

約数和(自身を除く): 133000380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 597, 796, 995, 1194, 1791, 1811, 1990, 2388, 2985, 3582, 3622, 3980, 5433, 5970, 7164, 7244, 8955, 9055, 10866, 11940, 16299, 17910, 18110, 21732, 27165, 32598, 35820, 36220, 54330, 65196, 81495, 108660, 162990, 325980, 360389, 720778, 1081167, 1441556, 1801945, 2162334, 3243501, 3603890, 4324668, 5405835, 6487002, 7207780, 10811670, 12974004, 16217505, 21623340, 32435010, 64870020]

約数ペア:

[(1, 64870020), (2, 32435010), (3, 21623340), (4, 16217505), (5, 12974004), (6, 10811670), (9, 7207780), (10, 6487002), (12, 5405835), (15, 4324668), (18, 3603890), (20, 3243501), (30, 2162334), (36, 1801945), (45, 1441556), (60, 1081167), (90, 720778), (180, 360389), (199, 325980), (398, 162990), (597, 108660), (796, 81495), (995, 65196), (1194, 54330), (1791, 36220), (1811, 35820), (1990, 32598), (2388, 27165), (2985, 21732), (3582, 18110), (3622, 17910), (3980, 16299), (5433, 11940), (5970, 10866), (7164, 9055), (7244, 8955)]