19984140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10093}}^1$

素因数の和:10119

約数の個数: 72

約数和(自身を含む): 66135888

約数和(自身を除く): 46151748

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10093, 20186, 30279, 40372, 50465, 60558, 90837, 100930, 111023, 121116, 151395, 181674, 201860, 222046, 302790, 333069, 363348, 444092, 454185, 555115, 605580, 666138, 908370, 999207, 1110230, 1332276, 1665345, 1816740, 1998414, 2220460, 3330690, 3996828, 4996035, 6661380, 9992070, 19984140]

約数ペア:

[(1, 19984140), (2, 9992070), (3, 6661380), (4, 4996035), (5, 3996828), (6, 3330690), (9, 2220460), (10, 1998414), (11, 1816740), (12, 1665345), (15, 1332276), (18, 1110230), (20, 999207), (22, 908370), (30, 666138), (33, 605580), (36, 555115), (44, 454185), (45, 444092), (55, 363348), (60, 333069), (66, 302790), (90, 222046), (99, 201860), (110, 181674), (132, 151395), (165, 121116), (180, 111023), (198, 100930), (220, 90837), (330, 60558), (396, 50465), (495, 40372), (660, 30279), (990, 20186), (1980, 10093)]