8640372

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{571}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 21973952

約数和(自身を除く): 13333580

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 97, 156, 194, 291, 388, 571, 582, 1142, 1164, 1261, 1713, 2284, 2522, 3426, 3783, 5044, 6852, 7423, 7566, 14846, 15132, 22269, 29692, 44538, 55387, 89076, 110774, 166161, 221548, 332322, 664644, 720031, 1440062, 2160093, 2880124, 4320186, 8640372]

約数ペア:

[(1, 8640372), (2, 4320186), (3, 2880124), (4, 2160093), (6, 1440062), (12, 720031), (13, 664644), (26, 332322), (39, 221548), (52, 166161), (78, 110774), (97, 89076), (156, 55387), (194, 44538), (291, 29692), (388, 22269), (571, 15132), (582, 14846), (1142, 7566), (1164, 7423), (1261, 6852), (1713, 5044), (2284, 3783), (2522, 3426)]