218991520

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{124427}}^1$

素因数の和:124453

約数の個数: 48

約数和(自身を含む): 564405408

約数和(自身を除く): 345413888

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 124427, 248854, 497708, 622135, 995416, 1244270, 1368697, 1990832, 2488540, 2737394, 3981664, 4977080, 5474788, 6843485, 9954160, 10949576, 13686970, 19908320, 21899152, 27373940, 43798304, 54747880, 109495760, 218991520]

約数ペア:

[(1, 218991520), (2, 109495760), (4, 54747880), (5, 43798304), (8, 27373940), (10, 21899152), (11, 19908320), (16, 13686970), (20, 10949576), (22, 9954160), (32, 6843485), (40, 5474788), (44, 4977080), (55, 3981664), (80, 2737394), (88, 2488540), (110, 1990832), (160, 1368697), (176, 1244270), (220, 995416), (352, 622135), (440, 497708), (880, 248854), (1760, 124427)]