1387980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{701}}^1$

素因数の和:727

約数の個数: 72

約数和(自身を含む): 4599504

約数和(自身を除く): 3211524

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 701, 990, 1402, 1980, 2103, 2804, 3505, 4206, 6309, 7010, 7711, 8412, 10515, 12618, 14020, 15422, 21030, 23133, 25236, 30844, 31545, 38555, 42060, 46266, 63090, 69399, 77110, 92532, 115665, 126180, 138798, 154220, 231330, 277596, 346995, 462660, 693990, 1387980]

約数ペア:

[(1, 1387980), (2, 693990), (3, 462660), (4, 346995), (5, 277596), (6, 231330), (9, 154220), (10, 138798), (11, 126180), (12, 115665), (15, 92532), (18, 77110), (20, 69399), (22, 63090), (30, 46266), (33, 42060), (36, 38555), (44, 31545), (45, 30844), (55, 25236), (60, 23133), (66, 21030), (90, 15422), (99, 14020), (110, 12618), (132, 10515), (165, 8412), (180, 7711), (198, 7010), (220, 6309), (330, 4206), (396, 3505), (495, 2804), (660, 2103), (701, 1980), (990, 1402)]