68533640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1559}}^1$

素因数の和:1734

約数の個数: 64

約数和(自身を含む): 177465600

約数和(自身を除く): 108931960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1559, 1570, 2198, 3118, 3140, 4396, 5495, 6236, 6280, 7795, 8792, 10913, 10990, 12472, 15590, 21826, 21980, 31180, 43652, 43960, 54565, 62360, 87304, 109130, 218260, 244763, 436520, 489526, 979052, 1223815, 1713341, 1958104, 2447630, 3426682, 4895260, 6853364, 8566705, 9790520, 13706728, 17133410, 34266820, 68533640]

約数ペア:

[(1, 68533640), (2, 34266820), (4, 17133410), (5, 13706728), (7, 9790520), (8, 8566705), (10, 6853364), (14, 4895260), (20, 3426682), (28, 2447630), (35, 1958104), (40, 1713341), (56, 1223815), (70, 979052), (140, 489526), (157, 436520), (280, 244763), (314, 218260), (628, 109130), (785, 87304), (1099, 62360), (1256, 54565), (1559, 43960), (1570, 43652), (2198, 31180), (3118, 21980), (3140, 21826), (4396, 15590), (5495, 12472), (6236, 10990), (6280, 10913), (7795, 8792)]