18480440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{433}}^1$

素因数の和:552

約数の個数: 64

約数和(自身を含む): 45934560

約数和(自身を除く): 27454120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 97, 110, 194, 220, 388, 433, 440, 485, 776, 866, 970, 1067, 1732, 1940, 2134, 2165, 3464, 3880, 4268, 4330, 4763, 5335, 8536, 8660, 9526, 10670, 17320, 19052, 21340, 23815, 38104, 42001, 42680, 47630, 84002, 95260, 168004, 190520, 210005, 336008, 420010, 462011, 840020, 924022, 1680040, 1848044, 2310055, 3696088, 4620110, 9240220, 18480440]

約数ペア:

[(1, 18480440), (2, 9240220), (4, 4620110), (5, 3696088), (8, 2310055), (10, 1848044), (11, 1680040), (20, 924022), (22, 840020), (40, 462011), (44, 420010), (55, 336008), (88, 210005), (97, 190520), (110, 168004), (194, 95260), (220, 84002), (388, 47630), (433, 42680), (440, 42001), (485, 38104), (776, 23815), (866, 21340), (970, 19052), (1067, 17320), (1732, 10670), (1940, 9526), (2134, 8660), (2165, 8536), (3464, 5335), (3880, 4763), (4268, 4330)]