18868460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2341}}^1$

素因数の和:2394

約数の個数: 48

約数和(自身を含む): 44067072

約数和(自身を除く): 25198612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 2341, 4030, 4682, 8060, 9364, 11705, 23410, 30433, 46820, 60866, 72571, 121732, 145142, 152165, 290284, 304330, 362855, 608660, 725710, 943423, 1451420, 1886846, 3773692, 4717115, 9434230, 18868460]

約数ペア:

[(1, 18868460), (2, 9434230), (4, 4717115), (5, 3773692), (10, 1886846), (13, 1451420), (20, 943423), (26, 725710), (31, 608660), (52, 362855), (62, 304330), (65, 290284), (124, 152165), (130, 145142), (155, 121732), (260, 72571), (310, 60866), (403, 46820), (620, 30433), (806, 23410), (1612, 11705), (2015, 9364), (2341, 8060), (4030, 4682)]