19619120

素因数分解:

$2^4\times 5^1\times {\mathrm{431}}^1\times {\mathrm{569}}^1$

素因数の和:1013

約数の個数: 40

約数和(自身を含む): 45800640

約数和(自身を除く): 26181520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 431, 569, 862, 1138, 1724, 2155, 2276, 2845, 3448, 4310, 4552, 5690, 6896, 8620, 9104, 11380, 17240, 22760, 34480, 45520, 245239, 490478, 980956, 1226195, 1961912, 2452390, 3923824, 4904780, 9809560, 19619120]

約数ペア:

[(1, 19619120), (2, 9809560), (4, 4904780), (5, 3923824), (8, 2452390), (10, 1961912), (16, 1226195), (20, 980956), (40, 490478), (80, 245239), (431, 45520), (569, 34480), (862, 22760), (1138, 17240), (1724, 11380), (2155, 9104), (2276, 8620), (2845, 6896), (3448, 5690), (4310, 4552)]