909015380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{499459}}^1$

素因数の和:499488

約数の個数: 48

約数和(自身を含む): 2349459840

約数和(自身を除く): 1440444460

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 499459, 998918, 1997836, 2497295, 3496213, 4994590, 6492967, 6992426, 9989180, 12985934, 13984852, 17481065, 25971868, 32464835, 34962130, 45450769, 64929670, 69924260, 90901538, 129859340, 181803076, 227253845, 454507690, 909015380]

約数ペア:

[(1, 909015380), (2, 454507690), (4, 227253845), (5, 181803076), (7, 129859340), (10, 90901538), (13, 69924260), (14, 64929670), (20, 45450769), (26, 34962130), (28, 32464835), (35, 25971868), (52, 17481065), (65, 13984852), (70, 12985934), (91, 9989180), (130, 6992426), (140, 6492967), (182, 4994590), (260, 3496213), (364, 2497295), (455, 1997836), (910, 998918), (1820, 499459)]