18808940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1319}}^1$

素因数の和:1382

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 23768980

約数列:

[1, 2, 4, 5, 10, 20, 23, 31, 46, 62, 92, 115, 124, 155, 230, 310, 460, 620, 713, 1319, 1426, 2638, 2852, 3565, 5276, 6595, 7130, 13190, 14260, 26380, 30337, 40889, 60674, 81778, 121348, 151685, 163556, 204445, 303370, 408890, 606740, 817780, 940447, 1880894, 3761788, 4702235, 9404470, 18808940]

約数ペア:

[(1, 18808940), (2, 9404470), (4, 4702235), (5, 3761788), (10, 1880894), (20, 940447), (23, 817780), (31, 606740), (46, 408890), (62, 303370), (92, 204445), (115, 163556), (124, 151685), (155, 121348), (230, 81778), (310, 60674), (460, 40889), (620, 30337), (713, 26380), (1319, 14260), (1426, 13190), (2638, 7130), (2852, 6595), (3565, 5276)]