64667240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:495

約数の個数: 96

約数和(自身を含む): 165473280

約数和(自身を除く): 100806040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 121, 124, 155, 220, 242, 248, 310, 341, 431, 440, 484, 605, 620, 682, 862, 968, 1210, 1240, 1364, 1705, 1724, 2155, 2420, 2728, 3410, 3448, 3751, 4310, 4741, 4840, 6820, 7502, 8620, 9482, 13361, 13640, 15004, 17240, 18755, 18964, 23705, 26722, 30008, 37510, 37928, 47410, 52151, 53444, 66805, 75020, 94820, 104302, 106888, 133610, 146971, 150040, 189640, 208604, 260755, 267220, 293942, 417208, 521510, 534440, 587884, 734855, 1043020, 1175768, 1469710, 1616681, 2086040, 2939420, 3233362, 5878840, 6466724, 8083405, 12933448, 16166810, 32333620, 64667240]

約数ペア:

[(1, 64667240), (2, 32333620), (4, 16166810), (5, 12933448), (8, 8083405), (10, 6466724), (11, 5878840), (20, 3233362), (22, 2939420), (31, 2086040), (40, 1616681), (44, 1469710), (55, 1175768), (62, 1043020), (88, 734855), (110, 587884), (121, 534440), (124, 521510), (155, 417208), (220, 293942), (242, 267220), (248, 260755), (310, 208604), (341, 189640), (431, 150040), (440, 146971), (484, 133610), (605, 106888), (620, 104302), (682, 94820), (862, 75020), (968, 66805), (1210, 53444), (1240, 52151), (1364, 47410), (1705, 37928), (1724, 37510), (2155, 30008), (2420, 26722), (2728, 23705), (3410, 18964), (3448, 18755), (3751, 17240), (4310, 15004), (4741, 13640), (4840, 13361), (6820, 9482), (7502, 8620)]