18411380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3727}}^1$

素因数の和:3768

約数の個数: 48

約数和(自身を含む): 43841280

約数和(自身を除く): 25429900

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 3727, 4940, 7454, 14908, 18635, 37270, 48451, 70813, 74540, 96902, 141626, 193804, 242255, 283252, 354065, 484510, 708130, 920569, 969020, 1416260, 1841138, 3682276, 4602845, 9205690, 18411380]

約数ペア:

[(1, 18411380), (2, 9205690), (4, 4602845), (5, 3682276), (10, 1841138), (13, 1416260), (19, 969020), (20, 920569), (26, 708130), (38, 484510), (52, 354065), (65, 283252), (76, 242255), (95, 193804), (130, 141626), (190, 96902), (247, 74540), (260, 70813), (380, 48451), (494, 37270), (988, 18635), (1235, 14908), (2470, 7454), (3727, 4940)]