1640131472

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{636697}}^1$

素因数の和:636735

約数の個数: 40

約数和(自身を含む): 3789626496

約数和(自身を除く): 2149495024

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 636697, 1273394, 2546788, 4456879, 5093576, 8913758, 10187152, 14644031, 17827516, 29288062, 35655032, 58576124, 71310064, 102508217, 117152248, 205016434, 234304496, 410032868, 820065736, 1640131472]

約数ペア:

[(1, 1640131472), (2, 820065736), (4, 410032868), (7, 234304496), (8, 205016434), (14, 117152248), (16, 102508217), (23, 71310064), (28, 58576124), (46, 35655032), (56, 29288062), (92, 17827516), (112, 14644031), (161, 10187152), (184, 8913758), (322, 5093576), (368, 4456879), (644, 2546788), (1288, 1273394), (2576, 636697)]