38745140

素因数分解:

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

素因数の和:2664

約数の個数: 48

約数和(自身を含む): 93878400

約数和(自身を除く): 55133260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 2180, 2539, 3052, 3815, 5078, 7630, 10156, 12695, 15260, 17773, 25390, 35546, 50780, 71092, 88865, 177730, 276751, 355460, 553502, 1107004, 1383755, 1937257, 2767510, 3874514, 5535020, 7749028, 9686285, 19372570, 38745140]

約数ペア:

[(1, 38745140), (2, 19372570), (4, 9686285), (5, 7749028), (7, 5535020), (10, 3874514), (14, 2767510), (20, 1937257), (28, 1383755), (35, 1107004), (70, 553502), (109, 355460), (140, 276751), (218, 177730), (436, 88865), (545, 71092), (763, 50780), (1090, 35546), (1526, 25390), (2180, 17773), (2539, 15260), (3052, 12695), (3815, 10156), (5078, 7630)]