8781520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{587}}^1$

素因数の和:628

約数の個数: 80

約数和(自身を含む): 23623488

約数和(自身を除く): 14841968

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 587, 680, 748, 880, 935, 1174, 1360, 1496, 1870, 2348, 2935, 2992, 3740, 4696, 5870, 6457, 7480, 9392, 9979, 11740, 12914, 14960, 19958, 23480, 25828, 32285, 39916, 46960, 49895, 51656, 64570, 79832, 99790, 103312, 109769, 129140, 159664, 199580, 219538, 258280, 399160, 439076, 516560, 548845, 798320, 878152, 1097690, 1756304, 2195380, 4390760, 8781520]

約数ペア:

[(1, 8781520), (2, 4390760), (4, 2195380), (5, 1756304), (8, 1097690), (10, 878152), (11, 798320), (16, 548845), (17, 516560), (20, 439076), (22, 399160), (34, 258280), (40, 219538), (44, 199580), (55, 159664), (68, 129140), (80, 109769), (85, 103312), (88, 99790), (110, 79832), (136, 64570), (170, 51656), (176, 49895), (187, 46960), (220, 39916), (272, 32285), (340, 25828), (374, 23480), (440, 19958), (587, 14960), (680, 12914), (748, 11740), (880, 9979), (935, 9392), (1174, 7480), (1360, 6457), (1496, 5870), (1870, 4696), (2348, 3740), (2935, 2992)]