3845980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 8820000

約数和(自身を除く): 4974020

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 349, 380, 551, 580, 698, 1102, 1396, 1745, 2204, 2755, 3490, 5510, 6631, 6980, 10121, 11020, 13262, 20242, 26524, 33155, 40484, 50605, 66310, 101210, 132620, 192299, 202420, 384598, 769196, 961495, 1922990, 3845980]

約数ペア:

[(1, 3845980), (2, 1922990), (4, 961495), (5, 769196), (10, 384598), (19, 202420), (20, 192299), (29, 132620), (38, 101210), (58, 66310), (76, 50605), (95, 40484), (116, 33155), (145, 26524), (190, 20242), (290, 13262), (349, 11020), (380, 10121), (551, 6980), (580, 6631), (698, 5510), (1102, 3490), (1396, 2755), (1745, 2204)]