18308940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23473}}^1$

素因数の和:23498

約数の個数: 48

約数和(自身を含む): 55210848

約数和(自身を除く): 36901908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 23473, 46946, 70419, 93892, 117365, 140838, 234730, 281676, 305149, 352095, 469460, 610298, 704190, 915447, 1220596, 1408380, 1525745, 1830894, 3051490, 3661788, 4577235, 6102980, 9154470, 18308940]

約数ペア:

[(1, 18308940), (2, 9154470), (3, 6102980), (4, 4577235), (5, 3661788), (6, 3051490), (10, 1830894), (12, 1525745), (13, 1408380), (15, 1220596), (20, 915447), (26, 704190), (30, 610298), (39, 469460), (52, 352095), (60, 305149), (65, 281676), (78, 234730), (130, 140838), (156, 117365), (195, 93892), (260, 70419), (390, 46946), (780, 23473)]