666056980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1\times {\mathrm{4523}}^1$

素因数の和:4768

約数の個数: 48

約数和(自身を含む): 1444060800

約数和(自身を除く): 778003820

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 199, 370, 398, 740, 796, 995, 1990, 3980, 4523, 7363, 9046, 14726, 18092, 22615, 29452, 36815, 45230, 73630, 90460, 147260, 167351, 334702, 669404, 836755, 900077, 1673510, 1800154, 3347020, 3600308, 4500385, 9000770, 18001540, 33302849, 66605698, 133211396, 166514245, 333028490, 666056980]

約数ペア:

[(1, 666056980), (2, 333028490), (4, 166514245), (5, 133211396), (10, 66605698), (20, 33302849), (37, 18001540), (74, 9000770), (148, 4500385), (185, 3600308), (199, 3347020), (370, 1800154), (398, 1673510), (740, 900077), (796, 836755), (995, 669404), (1990, 334702), (3980, 167351), (4523, 147260), (7363, 90460), (9046, 73630), (14726, 45230), (18092, 36815), (22615, 29452)]