77990440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{491}}^1$

素因数の和:551

約数の個数: 96

約数和(自身を含む): 202448160

約数和(自身を除く): 124457720

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 361, 380, 418, 440, 491, 722, 760, 836, 982, 1045, 1444, 1672, 1805, 1964, 2090, 2455, 2888, 3610, 3928, 3971, 4180, 4910, 5401, 7220, 7942, 8360, 9329, 9820, 10802, 14440, 15884, 18658, 19640, 19855, 21604, 27005, 31768, 37316, 39710, 43208, 46645, 54010, 74632, 79420, 93290, 102619, 108020, 158840, 177251, 186580, 205238, 216040, 354502, 373160, 410476, 513095, 709004, 820952, 886255, 1026190, 1418008, 1772510, 1949761, 2052380, 3545020, 3899522, 4104760, 7090040, 7799044, 9748805, 15598088, 19497610, 38995220, 77990440]

約数ペア:

[(1, 77990440), (2, 38995220), (4, 19497610), (5, 15598088), (8, 9748805), (10, 7799044), (11, 7090040), (19, 4104760), (20, 3899522), (22, 3545020), (38, 2052380), (40, 1949761), (44, 1772510), (55, 1418008), (76, 1026190), (88, 886255), (95, 820952), (110, 709004), (152, 513095), (190, 410476), (209, 373160), (220, 354502), (361, 216040), (380, 205238), (418, 186580), (440, 177251), (491, 158840), (722, 108020), (760, 102619), (836, 93290), (982, 79420), (1045, 74632), (1444, 54010), (1672, 46645), (1805, 43208), (1964, 39710), (2090, 37316), (2455, 31768), (2888, 27005), (3610, 21604), (3928, 19855), (3971, 19640), (4180, 18658), (4910, 15884), (5401, 14440), (7220, 10802), (7942, 9820), (8360, 9329)]