20512692050

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1\times {\mathrm{439}}^1$

素因数の和:808

約数の個数: 96

約数和(自身を含む): 39696983040

約数和(自身を除く): 19184290990

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 103, 206, 211, 215, 422, 430, 439, 515, 878, 1030, 1055, 1075, 2110, 2150, 2195, 2575, 4390, 4429, 5150, 5275, 8858, 9073, 10550, 10975, 18146, 18877, 21733, 21950, 22145, 37754, 43466, 44290, 45217, 45365, 90434, 90730, 92629, 94385, 108665, 110725, 185258, 188770, 217330, 221450, 226085, 226825, 452170, 453650, 463145, 471925, 543325, 926290, 934519, 943850, 1086650, 1130425, 1869038, 1944331, 2260850, 2315725, 3888662, 3983047, 4631450, 4672595, 7966094, 9345190, 9540787, 9721655, 19081574, 19443310, 19915235, 23362975, 39830470, 46725950, 47703935, 48608275, 95407870, 97216550, 99576175, 199152350, 238519675, 410253841, 477039350, 820507682, 2051269205, 4102538410, 10256346025, 20512692050]

約数ペア:

[(1, 20512692050), (2, 10256346025), (5, 4102538410), (10, 2051269205), (25, 820507682), (43, 477039350), (50, 410253841), (86, 238519675), (103, 199152350), (206, 99576175), (211, 97216550), (215, 95407870), (422, 48608275), (430, 47703935), (439, 46725950), (515, 39830470), (878, 23362975), (1030, 19915235), (1055, 19443310), (1075, 19081574), (2110, 9721655), (2150, 9540787), (2195, 9345190), (2575, 7966094), (4390, 4672595), (4429, 4631450), (5150, 3983047), (5275, 3888662), (8858, 2315725), (9073, 2260850), (10550, 1944331), (10975, 1869038), (18146, 1130425), (18877, 1086650), (21733, 943850), (21950, 934519), (22145, 926290), (37754, 543325), (43466, 471925), (44290, 463145), (45217, 453650), (45365, 452170), (90434, 226825), (90730, 226085), (92629, 221450), (94385, 217330), (108665, 188770), (110725, 185258)]