17897680

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:244

約数の個数: 80

約数和(自身を含む): 44354304

約数和(自身を除く): 26456624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 71, 80, 92, 115, 137, 142, 184, 230, 274, 284, 355, 368, 460, 548, 568, 685, 710, 920, 1096, 1136, 1370, 1420, 1633, 1840, 2192, 2740, 2840, 3151, 3266, 5480, 5680, 6302, 6532, 8165, 9727, 10960, 12604, 13064, 15755, 16330, 19454, 25208, 26128, 31510, 32660, 38908, 48635, 50416, 63020, 65320, 77816, 97270, 126040, 130640, 155632, 194540, 223721, 252080, 389080, 447442, 778160, 894884, 1118605, 1789768, 2237210, 3579536, 4474420, 8948840, 17897680]

約数ペア:

[(1, 17897680), (2, 8948840), (4, 4474420), (5, 3579536), (8, 2237210), (10, 1789768), (16, 1118605), (20, 894884), (23, 778160), (40, 447442), (46, 389080), (71, 252080), (80, 223721), (92, 194540), (115, 155632), (137, 130640), (142, 126040), (184, 97270), (230, 77816), (274, 65320), (284, 63020), (355, 50416), (368, 48635), (460, 38908), (548, 32660), (568, 31510), (685, 26128), (710, 25208), (920, 19454), (1096, 16330), (1136, 15755), (1370, 13064), (1420, 12604), (1633, 10960), (1840, 9727), (2192, 8165), (2740, 6532), (2840, 6302), (3151, 5680), (3266, 5480)]