2506040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 64

約数和(自身を含む): 6082560

約数和(自身を除く): 3576520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 43, 47, 62, 86, 94, 124, 155, 172, 188, 215, 235, 248, 310, 344, 376, 430, 470, 620, 860, 940, 1240, 1333, 1457, 1720, 1880, 2021, 2666, 2914, 4042, 5332, 5828, 6665, 7285, 8084, 10105, 10664, 11656, 13330, 14570, 16168, 20210, 26660, 29140, 40420, 53320, 58280, 62651, 80840, 125302, 250604, 313255, 501208, 626510, 1253020, 2506040]

約数ペア:

[(1, 2506040), (2, 1253020), (4, 626510), (5, 501208), (8, 313255), (10, 250604), (20, 125302), (31, 80840), (40, 62651), (43, 58280), (47, 53320), (62, 40420), (86, 29140), (94, 26660), (124, 20210), (155, 16168), (172, 14570), (188, 13330), (215, 11656), (235, 10664), (248, 10105), (310, 8084), (344, 7285), (376, 6665), (430, 5828), (470, 5332), (620, 4042), (860, 2914), (940, 2666), (1240, 2021), (1333, 1880), (1457, 1720)]