90040400

素因数分解:

$2^4\times 5^2\times {\mathrm{23}}^1\times {\mathrm{9787}}^1$

素因数の和:9828

約数の個数: 60

約数和(自身を含む): 225750432

約数和(自身を除く): 135710032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 40, 46, 50, 80, 92, 100, 115, 184, 200, 230, 368, 400, 460, 575, 920, 1150, 1840, 2300, 4600, 9200, 9787, 19574, 39148, 48935, 78296, 97870, 156592, 195740, 225101, 244675, 391480, 450202, 489350, 782960, 900404, 978700, 1125505, 1800808, 1957400, 2251010, 3601616, 3914800, 4502020, 5627525, 9004040, 11255050, 18008080, 22510100, 45020200, 90040400]

約数ペア:

[(1, 90040400), (2, 45020200), (4, 22510100), (5, 18008080), (8, 11255050), (10, 9004040), (16, 5627525), (20, 4502020), (23, 3914800), (25, 3601616), (40, 2251010), (46, 1957400), (50, 1800808), (80, 1125505), (92, 978700), (100, 900404), (115, 782960), (184, 489350), (200, 450202), (230, 391480), (368, 244675), (400, 225101), (460, 195740), (575, 156592), (920, 97870), (1150, 78296), (1840, 48935), (2300, 39148), (4600, 19574), (9200, 9787)]