1999215681680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{10631}}^1\times {\mathrm{335813}}^1$

素因数の和:346464

約数の個数: 80

約数和(自身を含む): 5312717178624

約数和(自身を除く): 3313501496944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 10631, 21262, 42524, 53155, 74417, 85048, 106310, 148834, 170096, 212620, 297668, 335813, 372085, 425240, 595336, 671626, 744170, 850480, 1190672, 1343252, 1488340, 1679065, 2350691, 2686504, 2976680, 3358130, 4701382, 5373008, 5953360, 6716260, 9402764, 11753455, 13432520, 18805528, 23506910, 26865040, 37611056, 47013820, 94027640, 188055280, 3570028003, 7140056006, 14280112012, 17850140015, 24990196021, 28560224024, 35700280030, 49980392042, 57120448048, 71400560060, 99960784084, 124950980105, 142801120120, 199921568168, 249901960210, 285602240240, 399843136336, 499803920420, 999607840840, 1999215681680]

約数ペア:

[(1, 1999215681680), (2, 999607840840), (4, 499803920420), (5, 399843136336), (7, 285602240240), (8, 249901960210), (10, 199921568168), (14, 142801120120), (16, 124950980105), (20, 99960784084), (28, 71400560060), (35, 57120448048), (40, 49980392042), (56, 35700280030), (70, 28560224024), (80, 24990196021), (112, 17850140015), (140, 14280112012), (280, 7140056006), (560, 3570028003), (10631, 188055280), (21262, 94027640), (42524, 47013820), (53155, 37611056), (74417, 26865040), (85048, 23506910), (106310, 18805528), (148834, 13432520), (170096, 11753455), (212620, 9402764), (297668, 6716260), (335813, 5953360), (372085, 5373008), (425240, 4701382), (595336, 3358130), (671626, 2976680), (744170, 2686504), (850480, 2350691), (1190672, 1679065), (1343252, 1488340)]