77405240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:285

約数の個数: 128

約数和(自身を含む): 205286400

約数和(自身を除く): 127881160

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 47, 55, 76, 88, 94, 95, 110, 152, 188, 190, 197, 209, 220, 235, 376, 380, 394, 418, 440, 470, 517, 760, 788, 836, 893, 940, 985, 1034, 1045, 1576, 1672, 1786, 1880, 1970, 2068, 2090, 2167, 2585, 3572, 3743, 3940, 4136, 4180, 4334, 4465, 5170, 7144, 7486, 7880, 8360, 8668, 8930, 9259, 9823, 10340, 10835, 14972, 17336, 17860, 18518, 18715, 19646, 20680, 21670, 29944, 35720, 37036, 37430, 39292, 41173, 43340, 46295, 49115, 74072, 74860, 78584, 82346, 86680, 92590, 98230, 101849, 149720, 164692, 175921, 185180, 196460, 203698, 205865, 329384, 351842, 370360, 392920, 407396, 411730, 509245, 703684, 814792, 823460, 879605, 1018490, 1407368, 1646920, 1759210, 1935131, 2036980, 3518420, 3870262, 4073960, 7036840, 7740524, 9675655, 15481048, 19351310, 38702620, 77405240]

約数ペア:

[(1, 77405240), (2, 38702620), (4, 19351310), (5, 15481048), (8, 9675655), (10, 7740524), (11, 7036840), (19, 4073960), (20, 3870262), (22, 3518420), (38, 2036980), (40, 1935131), (44, 1759210), (47, 1646920), (55, 1407368), (76, 1018490), (88, 879605), (94, 823460), (95, 814792), (110, 703684), (152, 509245), (188, 411730), (190, 407396), (197, 392920), (209, 370360), (220, 351842), (235, 329384), (376, 205865), (380, 203698), (394, 196460), (418, 185180), (440, 175921), (470, 164692), (517, 149720), (760, 101849), (788, 98230), (836, 92590), (893, 86680), (940, 82346), (985, 78584), (1034, 74860), (1045, 74072), (1576, 49115), (1672, 46295), (1786, 43340), (1880, 41173), (1970, 39292), (2068, 37430), (2090, 37036), (2167, 35720), (2585, 29944), (3572, 21670), (3743, 20680), (3940, 19646), (4136, 18715), (4180, 18518), (4334, 17860), (4465, 17336), (5170, 14972), (7144, 10835), (7486, 10340), (7880, 9823), (8360, 9259), (8668, 8930)]