1638992404

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{12457}}^1$

素因数の和:12632

約数の個数: 48

約数和(自身を含む): 3393359872

約数和(自身を除く): 1754367468

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 127, 148, 254, 259, 508, 518, 889, 1036, 1778, 3556, 4699, 9398, 12457, 18796, 24914, 32893, 49828, 65786, 87199, 131572, 174398, 348796, 460909, 921818, 1582039, 1843636, 3164078, 3226363, 6328156, 6452726, 11074273, 12905452, 22148546, 44297092, 58535443, 117070886, 234141772, 409748101, 819496202, 1638992404]

約数ペア:

[(1, 1638992404), (2, 819496202), (4, 409748101), (7, 234141772), (14, 117070886), (28, 58535443), (37, 44297092), (74, 22148546), (127, 12905452), (148, 11074273), (254, 6452726), (259, 6328156), (508, 3226363), (518, 3164078), (889, 1843636), (1036, 1582039), (1778, 921818), (3556, 460909), (4699, 348796), (9398, 174398), (12457, 131572), (18796, 87199), (24914, 65786), (32893, 49828)]