20189184536

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{347}}^1\times {\mathrm{1747}}^1$

素因数の和:2304

約数の個数: 64

約数和(自身を含む): 39856078080

約数和(自身を除く): 19666893544

約数列:

[1, 2, 4, 8, 23, 46, 92, 181, 184, 347, 362, 694, 724, 1388, 1448, 1747, 2776, 3494, 4163, 6988, 7981, 8326, 13976, 15962, 16652, 31924, 33304, 40181, 62807, 63848, 80362, 125614, 160724, 251228, 316207, 321448, 502456, 606209, 632414, 1212418, 1264828, 1444561, 2424836, 2529656, 2889122, 4849672, 5778244, 7272761, 11556488, 13942807, 14545522, 27885614, 29091044, 55771228, 58182088, 109723829, 111542456, 219447658, 438895316, 877790632, 2523648067, 5047296134, 10094592268, 20189184536]

約数ペア:

[(1, 20189184536), (2, 10094592268), (4, 5047296134), (8, 2523648067), (23, 877790632), (46, 438895316), (92, 219447658), (181, 111542456), (184, 109723829), (347, 58182088), (362, 55771228), (694, 29091044), (724, 27885614), (1388, 14545522), (1448, 13942807), (1747, 11556488), (2776, 7272761), (3494, 5778244), (4163, 4849672), (6988, 2889122), (7981, 2529656), (8326, 2424836), (13976, 1444561), (15962, 1264828), (16652, 1212418), (31924, 632414), (33304, 606209), (40181, 502456), (62807, 321448), (63848, 316207), (80362, 251228), (125614, 160724)]