2018191720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{8087}}^1$

素因数の和:8482

約数の個数: 64

約数和(自身を含む): 4821742080

約数和(自身を除く): 2803550360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 367, 680, 734, 1468, 1835, 2936, 3670, 6239, 7340, 8087, 12478, 14680, 16174, 24956, 31195, 32348, 40435, 49912, 62390, 64696, 80870, 124780, 137479, 161740, 249560, 274958, 323480, 549916, 687395, 1099832, 1374790, 2749580, 2967929, 5499160, 5935858, 11871716, 14839645, 23743432, 29679290, 50454793, 59358580, 100909586, 118717160, 201819172, 252273965, 403638344, 504547930, 1009095860, 2018191720]

約数ペア:

[(1, 2018191720), (2, 1009095860), (4, 504547930), (5, 403638344), (8, 252273965), (10, 201819172), (17, 118717160), (20, 100909586), (34, 59358580), (40, 50454793), (68, 29679290), (85, 23743432), (136, 14839645), (170, 11871716), (340, 5935858), (367, 5499160), (680, 2967929), (734, 2749580), (1468, 1374790), (1835, 1099832), (2936, 687395), (3670, 549916), (6239, 323480), (7340, 274958), (8087, 249560), (12478, 161740), (14680, 137479), (16174, 124780), (24956, 80870), (31195, 64696), (32348, 62390), (40435, 49912)]