215681520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{898673}}^1$

素因数の和:898689

約数の個数: 40

約数和(自身を含む): 668613456

約数和(自身を除く): 452931936

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 898673, 1797346, 2696019, 3594692, 4493365, 5392038, 7189384, 8986730, 10784076, 13480095, 14378768, 17973460, 21568152, 26960190, 35946920, 43136304, 53920380, 71893840, 107840760, 215681520]

約数ペア:

[(1, 215681520), (2, 107840760), (3, 71893840), (4, 53920380), (5, 43136304), (6, 35946920), (8, 26960190), (10, 21568152), (12, 17973460), (15, 14378768), (16, 13480095), (20, 10784076), (24, 8986730), (30, 7189384), (40, 5392038), (48, 4493365), (60, 3594692), (80, 2696019), (120, 1797346), (240, 898673)]