77490280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2539}}^1$

素因数の和:2666

約数の個数: 64

約数和(自身を含む): 201168000

約数和(自身を除く): 123677720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 109, 140, 218, 280, 436, 545, 763, 872, 1090, 1526, 2180, 2539, 3052, 3815, 4360, 5078, 6104, 7630, 10156, 12695, 15260, 17773, 20312, 25390, 30520, 35546, 50780, 71092, 88865, 101560, 142184, 177730, 276751, 355460, 553502, 710920, 1107004, 1383755, 1937257, 2214008, 2767510, 3874514, 5535020, 7749028, 9686285, 11070040, 15498056, 19372570, 38745140, 77490280]

約数ペア:

[(1, 77490280), (2, 38745140), (4, 19372570), (5, 15498056), (7, 11070040), (8, 9686285), (10, 7749028), (14, 5535020), (20, 3874514), (28, 2767510), (35, 2214008), (40, 1937257), (56, 1383755), (70, 1107004), (109, 710920), (140, 553502), (218, 355460), (280, 276751), (436, 177730), (545, 142184), (763, 101560), (872, 88865), (1090, 71092), (1526, 50780), (2180, 35546), (2539, 30520), (3052, 25390), (3815, 20312), (4360, 17773), (5078, 15260), (6104, 12695), (7630, 10156)]