8539900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 19998720

約数和(自身を除く): 11458820

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 46, 47, 50, 79, 92, 94, 100, 115, 158, 188, 230, 235, 316, 395, 460, 470, 575, 790, 940, 1081, 1150, 1175, 1580, 1817, 1975, 2162, 2300, 2350, 3634, 3713, 3950, 4324, 4700, 5405, 7268, 7426, 7900, 9085, 10810, 14852, 18170, 18565, 21620, 27025, 36340, 37130, 45425, 54050, 74260, 85399, 90850, 92825, 108100, 170798, 181700, 185650, 341596, 371300, 426995, 853990, 1707980, 2134975, 4269950, 8539900]

約数ペア:

[(1, 8539900), (2, 4269950), (4, 2134975), (5, 1707980), (10, 853990), (20, 426995), (23, 371300), (25, 341596), (46, 185650), (47, 181700), (50, 170798), (79, 108100), (92, 92825), (94, 90850), (100, 85399), (115, 74260), (158, 54050), (188, 45425), (230, 37130), (235, 36340), (316, 27025), (395, 21620), (460, 18565), (470, 18170), (575, 14852), (790, 10810), (940, 9085), (1081, 7900), (1150, 7426), (1175, 7268), (1580, 5405), (1817, 4700), (1975, 4324), (2162, 3950), (2300, 3713), (2350, 3634)]