18217880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{367}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 44115840

約数和(自身を除く): 25897960

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 73, 85, 136, 146, 170, 292, 340, 365, 367, 584, 680, 730, 734, 1241, 1460, 1468, 1835, 2482, 2920, 2936, 3670, 4964, 6205, 6239, 7340, 9928, 12410, 12478, 14680, 24820, 24956, 26791, 31195, 49640, 49912, 53582, 62390, 107164, 124780, 133955, 214328, 249560, 267910, 455447, 535820, 910894, 1071640, 1821788, 2277235, 3643576, 4554470, 9108940, 18217880]

約数ペア:

[(1, 18217880), (2, 9108940), (4, 4554470), (5, 3643576), (8, 2277235), (10, 1821788), (17, 1071640), (20, 910894), (34, 535820), (40, 455447), (68, 267910), (73, 249560), (85, 214328), (136, 133955), (146, 124780), (170, 107164), (292, 62390), (340, 53582), (365, 49912), (367, 49640), (584, 31195), (680, 26791), (730, 24956), (734, 24820), (1241, 14680), (1460, 12478), (1468, 12410), (1835, 9928), (2482, 7340), (2920, 6239), (2936, 6205), (3670, 4964)]