247280

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{281}}^1$

素因数の和:305

約数の個数: 40

約数和(自身を含む): 629424

約数和(自身を除く): 382144

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 281, 440, 562, 880, 1124, 1405, 2248, 2810, 3091, 4496, 5620, 6182, 11240, 12364, 15455, 22480, 24728, 30910, 49456, 61820, 123640, 247280]

約数ペア:

[(1, 247280), (2, 123640), (4, 61820), (5, 49456), (8, 30910), (10, 24728), (11, 22480), (16, 15455), (20, 12364), (22, 11240), (40, 6182), (44, 5620), (55, 4496), (80, 3091), (88, 2810), (110, 2248), (176, 1405), (220, 1124), (281, 880), (440, 562)]