422840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2$

素因数の和:84

約数の個数: 48

約数和(自身を含む): 1072440

約数和(自身を除く): 649600

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 124, 155, 220, 248, 310, 341, 440, 620, 682, 961, 1240, 1364, 1705, 1922, 2728, 3410, 3844, 4805, 6820, 7688, 9610, 10571, 13640, 19220, 21142, 38440, 42284, 52855, 84568, 105710, 211420, 422840]

約数ペア:

[(1, 422840), (2, 211420), (4, 105710), (5, 84568), (8, 52855), (10, 42284), (11, 38440), (20, 21142), (22, 19220), (31, 13640), (40, 10571), (44, 9610), (55, 7688), (62, 6820), (88, 4805), (110, 3844), (124, 3410), (155, 2728), (220, 1922), (248, 1705), (310, 1364), (341, 1240), (440, 961), (620, 682)]