19517290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 21125270

約数列:

[1, 2, 5, 10, 13, 26, 29, 31, 58, 62, 65, 130, 145, 155, 167, 290, 310, 334, 377, 403, 754, 806, 835, 899, 1670, 1798, 1885, 2015, 2171, 3770, 4030, 4342, 4495, 4843, 5177, 8990, 9686, 10354, 10855, 11687, 21710, 23374, 24215, 25885, 48430, 51770, 58435, 62959, 67301, 116870, 125918, 134602, 150133, 300266, 314795, 336505, 629590, 673010, 750665, 1501330, 1951729, 3903458, 9758645, 19517290]

約数ペア:

[(1, 19517290), (2, 9758645), (5, 3903458), (10, 1951729), (13, 1501330), (26, 750665), (29, 673010), (31, 629590), (58, 336505), (62, 314795), (65, 300266), (130, 150133), (145, 134602), (155, 125918), (167, 116870), (290, 67301), (310, 62959), (334, 58435), (377, 51770), (403, 48430), (754, 25885), (806, 24215), (835, 23374), (899, 21710), (1670, 11687), (1798, 10855), (1885, 10354), (2015, 9686), (2171, 8990), (3770, 5177), (4030, 4843), (4342, 4495)]