28781456

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{5639}}^1$

素因数の和:5687

約数の個数: 40

約数和(自身を含む): 62942400

約数和(自身を除く): 34160944

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 44, 58, 88, 116, 176, 232, 319, 464, 638, 1276, 2552, 5104, 5639, 11278, 22556, 45112, 62029, 90224, 124058, 163531, 248116, 327062, 496232, 654124, 992464, 1308248, 1798841, 2616496, 3597682, 7195364, 14390728, 28781456]

約数ペア:

[(1, 28781456), (2, 14390728), (4, 7195364), (8, 3597682), (11, 2616496), (16, 1798841), (22, 1308248), (29, 992464), (44, 654124), (58, 496232), (88, 327062), (116, 248116), (176, 163531), (232, 124058), (319, 90224), (464, 62029), (638, 45112), (1276, 22556), (2552, 11278), (5104, 5639)]