200645020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{2969}}^1$

素因数の和:3118

約数の個数: 48

約数和(自身を含む): 439084800

約数和(自身を除く): 238439780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 109, 124, 155, 218, 310, 436, 545, 620, 1090, 2180, 2969, 3379, 5938, 6758, 11876, 13516, 14845, 16895, 29690, 33790, 59380, 67580, 92039, 184078, 323621, 368156, 460195, 647242, 920390, 1294484, 1618105, 1840780, 3236210, 6472420, 10032251, 20064502, 40129004, 50161255, 100322510, 200645020]

約数ペア:

[(1, 200645020), (2, 100322510), (4, 50161255), (5, 40129004), (10, 20064502), (20, 10032251), (31, 6472420), (62, 3236210), (109, 1840780), (124, 1618105), (155, 1294484), (218, 920390), (310, 647242), (436, 460195), (545, 368156), (620, 323621), (1090, 184078), (2180, 92039), (2969, 67580), (3379, 59380), (5938, 33790), (6758, 29690), (11876, 16895), (13516, 14845)]