67777640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{491}}^1$

素因数の和:555

約数の個数: 128

約数和(自身を含む): 191289600

約数和(自身を除く): 123511960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 29, 34, 35, 40, 56, 58, 68, 70, 85, 116, 119, 136, 140, 145, 170, 203, 232, 238, 280, 290, 340, 406, 476, 491, 493, 580, 595, 680, 812, 952, 982, 986, 1015, 1160, 1190, 1624, 1964, 1972, 2030, 2380, 2455, 2465, 3437, 3451, 3928, 3944, 4060, 4760, 4910, 4930, 6874, 6902, 8120, 8347, 9820, 9860, 13748, 13804, 14239, 16694, 17185, 17255, 19640, 19720, 27496, 27608, 28478, 33388, 34370, 34510, 41735, 56956, 58429, 66776, 68740, 69020, 71195, 83470, 99673, 113912, 116858, 137480, 138040, 142390, 166940, 199346, 233716, 242063, 284780, 292145, 333880, 398692, 467432, 484126, 498365, 569560, 584290, 797384, 968252, 996730, 1168580, 1210315, 1694441, 1936504, 1993460, 2337160, 2420630, 3388882, 3986920, 4841260, 6777764, 8472205, 9682520, 13555528, 16944410, 33888820, 67777640]

約数ペア:

[(1, 67777640), (2, 33888820), (4, 16944410), (5, 13555528), (7, 9682520), (8, 8472205), (10, 6777764), (14, 4841260), (17, 3986920), (20, 3388882), (28, 2420630), (29, 2337160), (34, 1993460), (35, 1936504), (40, 1694441), (56, 1210315), (58, 1168580), (68, 996730), (70, 968252), (85, 797384), (116, 584290), (119, 569560), (136, 498365), (140, 484126), (145, 467432), (170, 398692), (203, 333880), (232, 292145), (238, 284780), (280, 242063), (290, 233716), (340, 199346), (406, 166940), (476, 142390), (491, 138040), (493, 137480), (580, 116858), (595, 113912), (680, 99673), (812, 83470), (952, 71195), (982, 69020), (986, 68740), (1015, 66776), (1160, 58429), (1190, 56956), (1624, 41735), (1964, 34510), (1972, 34370), (2030, 33388), (2380, 28478), (2455, 27608), (2465, 27496), (3437, 19720), (3451, 19640), (3928, 17255), (3944, 17185), (4060, 16694), (4760, 14239), (4910, 13804), (4930, 13748), (6874, 9860), (6902, 9820), (8120, 8347)]