39812680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 93703680

約数和(自身を除く): 53891000

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 97, 124, 155, 194, 248, 310, 331, 388, 485, 620, 662, 776, 970, 1240, 1324, 1655, 1940, 2648, 3007, 3310, 3880, 6014, 6620, 10261, 12028, 13240, 15035, 20522, 24056, 30070, 32107, 41044, 51305, 60140, 64214, 82088, 102610, 120280, 128428, 160535, 205220, 256856, 321070, 410440, 642140, 995317, 1284280, 1990634, 3981268, 4976585, 7962536, 9953170, 19906340, 39812680]

約数ペア:

[(1, 39812680), (2, 19906340), (4, 9953170), (5, 7962536), (8, 4976585), (10, 3981268), (20, 1990634), (31, 1284280), (40, 995317), (62, 642140), (97, 410440), (124, 321070), (155, 256856), (194, 205220), (248, 160535), (310, 128428), (331, 120280), (388, 102610), (485, 82088), (620, 64214), (662, 60140), (776, 51305), (970, 41044), (1240, 32107), (1324, 30070), (1655, 24056), (1940, 20522), (2648, 15035), (3007, 13240), (3310, 12028), (3880, 10261), (6014, 6620)]