208456720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{153277}}^1$

素因数の和:153307

約数の個数: 40

約数和(自身を含む): 513174744

約数和(自身を除く): 304718024

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 153277, 306554, 613108, 766385, 1226216, 1532770, 2452432, 2605709, 3065540, 5211418, 6131080, 10422836, 12262160, 13028545, 20845672, 26057090, 41691344, 52114180, 104228360, 208456720]

約数ペア:

[(1, 208456720), (2, 104228360), (4, 52114180), (5, 41691344), (8, 26057090), (10, 20845672), (16, 13028545), (17, 12262160), (20, 10422836), (34, 6131080), (40, 5211418), (68, 3065540), (80, 2605709), (85, 2452432), (136, 1532770), (170, 1226216), (272, 766385), (340, 613108), (680, 306554), (1360, 153277)]