13380760

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{199}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 31014000

約数和(自身を除く): 17633240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 199, 205, 328, 398, 410, 796, 820, 995, 1592, 1640, 1681, 1990, 3362, 3980, 6724, 7960, 8159, 8405, 13448, 16318, 16810, 32636, 33620, 40795, 65272, 67240, 81590, 163180, 326360, 334519, 669038, 1338076, 1672595, 2676152, 3345190, 6690380, 13380760]

約数ペア:

[(1, 13380760), (2, 6690380), (4, 3345190), (5, 2676152), (8, 1672595), (10, 1338076), (20, 669038), (40, 334519), (41, 326360), (82, 163180), (164, 81590), (199, 67240), (205, 65272), (328, 40795), (398, 33620), (410, 32636), (796, 16810), (820, 16318), (995, 13448), (1592, 8405), (1640, 8159), (1681, 7960), (1990, 6724), (3362, 3980)]