404190

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{499}}^1$

素因数の和:518

約数の個数: 40

約数和(自身を含む): 1089000

約数和(自身を除く): 684810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 499, 810, 998, 1497, 2495, 2994, 4491, 4990, 7485, 8982, 13473, 14970, 22455, 26946, 40419, 44910, 67365, 80838, 134730, 202095, 404190]

約数ペア:

[(1, 404190), (2, 202095), (3, 134730), (5, 80838), (6, 67365), (9, 44910), (10, 40419), (15, 26946), (18, 22455), (27, 14970), (30, 13473), (45, 8982), (54, 7485), (81, 4990), (90, 4491), (135, 2994), (162, 2495), (270, 1497), (405, 998), (499, 810)]