72787880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:339

約数の個数: 128

約数和(自身を含む): 195022080

約数和(自身を除く): 122234200

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 37, 40, 44, 55, 68, 74, 85, 88, 110, 136, 148, 170, 185, 187, 220, 263, 296, 340, 370, 374, 407, 440, 526, 629, 680, 740, 748, 814, 935, 1052, 1258, 1315, 1480, 1496, 1628, 1870, 2035, 2104, 2516, 2630, 2893, 3145, 3256, 3740, 4070, 4471, 5032, 5260, 5786, 6290, 6919, 7480, 8140, 8942, 9731, 10520, 11572, 12580, 13838, 14465, 16280, 17884, 19462, 22355, 23144, 25160, 27676, 28930, 34595, 35768, 38924, 44710, 48655, 49181, 55352, 57860, 69190, 77848, 89420, 97310, 98362, 107041, 115720, 138380, 165427, 178840, 194620, 196724, 214082, 245905, 276760, 330854, 389240, 393448, 428164, 491810, 535205, 661708, 827135, 856328, 983620, 1070410, 1323416, 1654270, 1819697, 1967240, 2140820, 3308540, 3639394, 4281640, 6617080, 7278788, 9098485, 14557576, 18196970, 36393940, 72787880]

約数ペア:

[(1, 72787880), (2, 36393940), (4, 18196970), (5, 14557576), (8, 9098485), (10, 7278788), (11, 6617080), (17, 4281640), (20, 3639394), (22, 3308540), (34, 2140820), (37, 1967240), (40, 1819697), (44, 1654270), (55, 1323416), (68, 1070410), (74, 983620), (85, 856328), (88, 827135), (110, 661708), (136, 535205), (148, 491810), (170, 428164), (185, 393448), (187, 389240), (220, 330854), (263, 276760), (296, 245905), (340, 214082), (370, 196724), (374, 194620), (407, 178840), (440, 165427), (526, 138380), (629, 115720), (680, 107041), (740, 98362), (748, 97310), (814, 89420), (935, 77848), (1052, 69190), (1258, 57860), (1315, 55352), (1480, 49181), (1496, 48655), (1628, 44710), (1870, 38924), (2035, 35768), (2104, 34595), (2516, 28930), (2630, 27676), (2893, 25160), (3145, 23144), (3256, 22355), (3740, 19462), (4070, 17884), (4471, 16280), (5032, 14465), (5260, 13838), (5786, 12580), (6290, 11572), (6919, 10520), (7480, 9731), (8140, 8942)]