12695020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 28986048

約数和(自身を除く): 16291028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 157, 260, 311, 314, 622, 628, 785, 1244, 1555, 1570, 2041, 3110, 3140, 4043, 4082, 6220, 8086, 8164, 10205, 16172, 20215, 20410, 40430, 40820, 48827, 80860, 97654, 195308, 244135, 488270, 634751, 976540, 1269502, 2539004, 3173755, 6347510, 12695020]

約数ペア:

[(1, 12695020), (2, 6347510), (4, 3173755), (5, 2539004), (10, 1269502), (13, 976540), (20, 634751), (26, 488270), (52, 244135), (65, 195308), (130, 97654), (157, 80860), (260, 48827), (311, 40820), (314, 40430), (622, 20410), (628, 20215), (785, 16172), (1244, 10205), (1555, 8164), (1570, 8086), (2041, 6220), (3110, 4082), (3140, 4043)]