128781664

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21521}}^1$

素因数の和:21559

約数の個数: 48

約数和(自身を含む): 292871376

約数和(自身を除く): 164089712

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 68, 88, 136, 176, 187, 272, 352, 374, 544, 748, 1496, 2992, 5984, 21521, 43042, 86084, 172168, 236731, 344336, 365857, 473462, 688672, 731714, 946924, 1463428, 1893848, 2926856, 3787696, 4024427, 5853712, 7575392, 8048854, 11707424, 16097708, 32195416, 64390832, 128781664]

約数ペア:

[(1, 128781664), (2, 64390832), (4, 32195416), (8, 16097708), (11, 11707424), (16, 8048854), (17, 7575392), (22, 5853712), (32, 4024427), (34, 3787696), (44, 2926856), (68, 1893848), (88, 1463428), (136, 946924), (176, 731714), (187, 688672), (272, 473462), (352, 365857), (374, 344336), (544, 236731), (748, 172168), (1496, 86084), (2992, 43042), (5984, 21521)]