18196970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:335

約数の個数: 64

約数和(自身を含む): 39004416

約数和(自身を除く): 20807446

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 37, 55, 74, 85, 110, 170, 185, 187, 263, 370, 374, 407, 526, 629, 814, 935, 1258, 1315, 1870, 2035, 2630, 2893, 3145, 4070, 4471, 5786, 6290, 6919, 8942, 9731, 13838, 14465, 19462, 22355, 28930, 34595, 44710, 48655, 49181, 69190, 97310, 98362, 107041, 165427, 214082, 245905, 330854, 491810, 535205, 827135, 1070410, 1654270, 1819697, 3639394, 9098485, 18196970]

約数ペア:

[(1, 18196970), (2, 9098485), (5, 3639394), (10, 1819697), (11, 1654270), (17, 1070410), (22, 827135), (34, 535205), (37, 491810), (55, 330854), (74, 245905), (85, 214082), (110, 165427), (170, 107041), (185, 98362), (187, 97310), (263, 69190), (370, 49181), (374, 48655), (407, 44710), (526, 34595), (629, 28930), (814, 22355), (935, 19462), (1258, 14465), (1315, 13838), (1870, 9731), (2035, 8942), (2630, 6919), (2893, 6290), (3145, 5786), (4070, 4471)]