19692740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{1787}}^1$

素因数の和:1844

約数の個数: 48

約数和(自身を含む): 45057600

約数和(自身を除く): 25364860

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 551, 580, 1102, 1787, 2204, 2755, 3574, 5510, 7148, 8935, 11020, 17870, 33953, 35740, 51823, 67906, 103646, 135812, 169765, 207292, 259115, 339530, 518230, 679060, 984637, 1036460, 1969274, 3938548, 4923185, 9846370, 19692740]

約数ペア:

[(1, 19692740), (2, 9846370), (4, 4923185), (5, 3938548), (10, 1969274), (19, 1036460), (20, 984637), (29, 679060), (38, 518230), (58, 339530), (76, 259115), (95, 207292), (116, 169765), (145, 135812), (190, 103646), (290, 67906), (380, 51823), (551, 35740), (580, 33953), (1102, 17870), (1787, 11020), (2204, 8935), (2755, 7148), (3574, 5510)]