18350480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:264

約数の個数: 80

約数和(自身を含む): 45961344

約数和(自身を除く): 27610864

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 103, 131, 136, 170, 206, 262, 272, 340, 412, 515, 524, 655, 680, 824, 1030, 1048, 1310, 1360, 1648, 1751, 2060, 2096, 2227, 2620, 3502, 4120, 4454, 5240, 7004, 8240, 8755, 8908, 10480, 11135, 13493, 14008, 17510, 17816, 22270, 26986, 28016, 35020, 35632, 44540, 53972, 67465, 70040, 89080, 107944, 134930, 140080, 178160, 215888, 229381, 269860, 458762, 539720, 917524, 1079440, 1146905, 1835048, 2293810, 3670096, 4587620, 9175240, 18350480]

約数ペア:

[(1, 18350480), (2, 9175240), (4, 4587620), (5, 3670096), (8, 2293810), (10, 1835048), (16, 1146905), (17, 1079440), (20, 917524), (34, 539720), (40, 458762), (68, 269860), (80, 229381), (85, 215888), (103, 178160), (131, 140080), (136, 134930), (170, 107944), (206, 89080), (262, 70040), (272, 67465), (340, 53972), (412, 44540), (515, 35632), (524, 35020), (655, 28016), (680, 26986), (824, 22270), (1030, 17816), (1048, 17510), (1310, 14008), (1360, 13493), (1648, 11135), (1751, 10480), (2060, 8908), (2096, 8755), (2227, 8240), (2620, 7004), (3502, 5240), (4120, 4454)]