138925880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{563}}^1$

素因数の和:804

約数の個数: 64

約数和(自身を含む): 324864000

約数和(自身を除く): 185938120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 199, 248, 310, 398, 563, 620, 796, 995, 1126, 1240, 1592, 1990, 2252, 2815, 3980, 4504, 5630, 6169, 7960, 11260, 12338, 17453, 22520, 24676, 30845, 34906, 49352, 61690, 69812, 87265, 112037, 123380, 139624, 174530, 224074, 246760, 349060, 448148, 560185, 698120, 896296, 1120370, 2240740, 3473147, 4481480, 6946294, 13892588, 17365735, 27785176, 34731470, 69462940, 138925880]

約数ペア:

[(1, 138925880), (2, 69462940), (4, 34731470), (5, 27785176), (8, 17365735), (10, 13892588), (20, 6946294), (31, 4481480), (40, 3473147), (62, 2240740), (124, 1120370), (155, 896296), (199, 698120), (248, 560185), (310, 448148), (398, 349060), (563, 246760), (620, 224074), (796, 174530), (995, 139624), (1126, 123380), (1240, 112037), (1592, 87265), (1990, 69812), (2252, 61690), (2815, 49352), (3980, 34906), (4504, 30845), (5630, 24676), (6169, 22520), (7960, 17453), (11260, 12338)]