660698913

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{397}}^1$

素因数の和:566

約数の個数: 64

約数和(自身を含む): 1098352640

約数和(自身を除く): 437653727

約数列:

[1, 3, 7, 19, 21, 43, 57, 97, 129, 133, 291, 301, 397, 399, 679, 817, 903, 1191, 1843, 2037, 2451, 2779, 4171, 5529, 5719, 7543, 8337, 12513, 12901, 17071, 17157, 22629, 29197, 38509, 38703, 51213, 52801, 79249, 87591, 115527, 119497, 158403, 237747, 269563, 324349, 358491, 554743, 731671, 808689, 973047, 1655887, 1664229, 2195013, 2270443, 4967661, 5121697, 6811329, 11591209, 15365091, 31461853, 34773627, 94385559, 220232971, 660698913]

約数ペア:

[(1, 660698913), (3, 220232971), (7, 94385559), (19, 34773627), (21, 31461853), (43, 15365091), (57, 11591209), (97, 6811329), (129, 5121697), (133, 4967661), (291, 2270443), (301, 2195013), (397, 1664229), (399, 1655887), (679, 973047), (817, 808689), (903, 731671), (1191, 554743), (1843, 358491), (2037, 324349), (2451, 269563), (2779, 237747), (4171, 158403), (5529, 119497), (5719, 115527), (7543, 87591), (8337, 79249), (12513, 52801), (12901, 51213), (17071, 38703), (17157, 38509), (22629, 29197)]