19836720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{27551}}^1$

素因数の和:27570

約数の個数: 60

約数和(自身を含む): 66620736

約数和(自身を除く): 46784016

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 27551, 55102, 82653, 110204, 137755, 165306, 220408, 247959, 275510, 330612, 413265, 440816, 495918, 551020, 661224, 826530, 991836, 1102040, 1239795, 1322448, 1653060, 1983672, 2204080, 2479590, 3306120, 3967344, 4959180, 6612240, 9918360, 19836720]

約数ペア:

[(1, 19836720), (2, 9918360), (3, 6612240), (4, 4959180), (5, 3967344), (6, 3306120), (8, 2479590), (9, 2204080), (10, 1983672), (12, 1653060), (15, 1322448), (16, 1239795), (18, 1102040), (20, 991836), (24, 826530), (30, 661224), (36, 551020), (40, 495918), (45, 440816), (48, 413265), (60, 330612), (72, 275510), (80, 247959), (90, 220408), (120, 165306), (144, 137755), (180, 110204), (240, 82653), (360, 55102), (720, 27551)]