408701240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{1871}}^1$

素因数の和:2052

約数の個数: 64

約数和(自身を含む): 948879360

約数和(自身を除く): 540178120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 127, 172, 215, 254, 344, 430, 508, 635, 860, 1016, 1270, 1720, 1871, 2540, 3742, 5080, 5461, 7484, 9355, 10922, 14968, 18710, 21844, 27305, 37420, 43688, 54610, 74840, 80453, 109220, 160906, 218440, 237617, 321812, 402265, 475234, 643624, 804530, 950468, 1188085, 1609060, 1900936, 2376170, 3218120, 4752340, 9504680, 10217531, 20435062, 40870124, 51087655, 81740248, 102175310, 204350620, 408701240]

約数ペア:

[(1, 408701240), (2, 204350620), (4, 102175310), (5, 81740248), (8, 51087655), (10, 40870124), (20, 20435062), (40, 10217531), (43, 9504680), (86, 4752340), (127, 3218120), (172, 2376170), (215, 1900936), (254, 1609060), (344, 1188085), (430, 950468), (508, 804530), (635, 643624), (860, 475234), (1016, 402265), (1270, 321812), (1720, 237617), (1871, 218440), (2540, 160906), (3742, 109220), (5080, 80453), (5461, 74840), (7484, 54610), (9355, 43688), (10922, 37420), (14968, 27305), (18710, 21844)]