20718120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4211}}^1$

素因数の和:4266

約数の個数: 64

約数和(自身を含む): 63685440

約数和(自身を除く): 42967320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 60, 82, 120, 123, 164, 205, 246, 328, 410, 492, 615, 820, 984, 1230, 1640, 2460, 4211, 4920, 8422, 12633, 16844, 21055, 25266, 33688, 42110, 50532, 63165, 84220, 101064, 126330, 168440, 172651, 252660, 345302, 505320, 517953, 690604, 863255, 1035906, 1381208, 1726510, 2071812, 2589765, 3453020, 4143624, 5179530, 6906040, 10359060, 20718120]

約数ペア:

[(1, 20718120), (2, 10359060), (3, 6906040), (4, 5179530), (5, 4143624), (6, 3453020), (8, 2589765), (10, 2071812), (12, 1726510), (15, 1381208), (20, 1035906), (24, 863255), (30, 690604), (40, 517953), (41, 505320), (60, 345302), (82, 252660), (120, 172651), (123, 168440), (164, 126330), (205, 101064), (246, 84220), (328, 63165), (410, 50532), (492, 42110), (615, 33688), (820, 25266), (984, 21055), (1230, 16844), (1640, 12633), (2460, 8422), (4211, 4920)]