68777920

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{269}}^1$

素因数の和:350

約数の個数: 112

約数和(自身を含む): 177759360

約数和(自身を除く): 108981440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 47, 64, 68, 80, 85, 94, 136, 160, 170, 188, 235, 269, 272, 320, 340, 376, 470, 538, 544, 680, 752, 799, 940, 1076, 1088, 1345, 1360, 1504, 1598, 1880, 2152, 2690, 2720, 3008, 3196, 3760, 3995, 4304, 4573, 5380, 5440, 6392, 7520, 7990, 8608, 9146, 10760, 12643, 12784, 15040, 15980, 17216, 18292, 21520, 22865, 25286, 25568, 31960, 36584, 43040, 45730, 50572, 51136, 63215, 63920, 73168, 86080, 91460, 101144, 126430, 127840, 146336, 182920, 202288, 214931, 252860, 255680, 292672, 365840, 404576, 429862, 505720, 731680, 809152, 859724, 1011440, 1074655, 1463360, 1719448, 2022880, 2149310, 3438896, 4045760, 4298620, 6877792, 8597240, 13755584, 17194480, 34388960, 68777920]

約数ペア:

[(1, 68777920), (2, 34388960), (4, 17194480), (5, 13755584), (8, 8597240), (10, 6877792), (16, 4298620), (17, 4045760), (20, 3438896), (32, 2149310), (34, 2022880), (40, 1719448), (47, 1463360), (64, 1074655), (68, 1011440), (80, 859724), (85, 809152), (94, 731680), (136, 505720), (160, 429862), (170, 404576), (188, 365840), (235, 292672), (269, 255680), (272, 252860), (320, 214931), (340, 202288), (376, 182920), (470, 146336), (538, 127840), (544, 126430), (680, 101144), (752, 91460), (799, 86080), (940, 73168), (1076, 63920), (1088, 63215), (1345, 51136), (1360, 50572), (1504, 45730), (1598, 43040), (1880, 36584), (2152, 31960), (2690, 25568), (2720, 25286), (3008, 22865), (3196, 21520), (3760, 18292), (3995, 17216), (4304, 15980), (4573, 15040), (5380, 12784), (5440, 12643), (6392, 10760), (7520, 9146), (7990, 8608)]