90218680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2347}}^1$

素因数の和:2420

約数の個数: 48

約数和(自身を含む): 209840760

約数和(自身を除く): 119622080

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 2347, 3844, 4694, 4805, 7688, 9388, 9610, 11735, 18776, 19220, 23470, 38440, 46940, 72757, 93880, 145514, 291028, 363785, 582056, 727570, 1455140, 2255467, 2910280, 4510934, 9021868, 11277335, 18043736, 22554670, 45109340, 90218680]

約数ペア:

[(1, 90218680), (2, 45109340), (4, 22554670), (5, 18043736), (8, 11277335), (10, 9021868), (20, 4510934), (31, 2910280), (40, 2255467), (62, 1455140), (124, 727570), (155, 582056), (248, 363785), (310, 291028), (620, 145514), (961, 93880), (1240, 72757), (1922, 46940), (2347, 38440), (3844, 23470), (4694, 19220), (4805, 18776), (7688, 11735), (9388, 9610)]