2021067940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^3$

素因数の和:210

約数の個数: 96

約数和(自身を含む): 4594867200

約数和(自身を除く): 2573799260

約数列:

[1, 2, 4, 5, 10, 20, 31, 41, 43, 62, 82, 86, 124, 155, 164, 172, 205, 215, 310, 410, 430, 620, 820, 860, 1271, 1333, 1763, 1849, 2542, 2666, 3526, 3698, 5084, 5332, 6355, 6665, 7052, 7396, 8815, 9245, 12710, 13330, 17630, 18490, 25420, 26660, 35260, 36980, 54653, 57319, 75809, 79507, 109306, 114638, 151618, 159014, 218612, 229276, 273265, 286595, 303236, 318028, 379045, 397535, 546530, 573190, 758090, 795070, 1093060, 1146380, 1516180, 1590140, 2350079, 2464717, 3259787, 4700158, 4929434, 6519574, 9400316, 9858868, 11750395, 12323585, 13039148, 16298935, 23500790, 24647170, 32597870, 47001580, 49294340, 65195740, 101053397, 202106794, 404213588, 505266985, 1010533970, 2021067940]

約数ペア:

[(1, 2021067940), (2, 1010533970), (4, 505266985), (5, 404213588), (10, 202106794), (20, 101053397), (31, 65195740), (41, 49294340), (43, 47001580), (62, 32597870), (82, 24647170), (86, 23500790), (124, 16298935), (155, 13039148), (164, 12323585), (172, 11750395), (205, 9858868), (215, 9400316), (310, 6519574), (410, 4929434), (430, 4700158), (620, 3259787), (820, 2464717), (860, 2350079), (1271, 1590140), (1333, 1516180), (1763, 1146380), (1849, 1093060), (2542, 795070), (2666, 758090), (3526, 573190), (3698, 546530), (5084, 397535), (5332, 379045), (6355, 318028), (6665, 303236), (7052, 286595), (7396, 273265), (8815, 229276), (9245, 218612), (12710, 159014), (13330, 151618), (17630, 114638), (18490, 109306), (25420, 79507), (26660, 75809), (35260, 57319), (36980, 54653)]