66328840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{359}}^1$

素因数の和:550

約数の個数: 64

約数和(自身を含む): 155520000

約数和(自身を除く): 89191160

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 149, 155, 248, 298, 310, 359, 596, 620, 718, 745, 1192, 1240, 1436, 1490, 1795, 2872, 2980, 3590, 4619, 5960, 7180, 9238, 11129, 14360, 18476, 22258, 23095, 36952, 44516, 46190, 53491, 55645, 89032, 92380, 106982, 111290, 184760, 213964, 222580, 267455, 427928, 445160, 534910, 1069820, 1658221, 2139640, 3316442, 6632884, 8291105, 13265768, 16582210, 33164420, 66328840]

約数ペア:

[(1, 66328840), (2, 33164420), (4, 16582210), (5, 13265768), (8, 8291105), (10, 6632884), (20, 3316442), (31, 2139640), (40, 1658221), (62, 1069820), (124, 534910), (149, 445160), (155, 427928), (248, 267455), (298, 222580), (310, 213964), (359, 184760), (596, 111290), (620, 106982), (718, 92380), (745, 89032), (1192, 55645), (1240, 53491), (1436, 46190), (1490, 44516), (1795, 36952), (2872, 23095), (2980, 22258), (3590, 18476), (4619, 14360), (5960, 11129), (7180, 9238)]