38710000

素因数分解:

$2^4\times 5^4\times 7^2\times {\mathrm{79}}^1$

素因数の和:121

約数の個数: 150

約数和(自身を含む): 110402160

約数和(自身を除く): 71692160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 49, 50, 56, 70, 79, 80, 98, 100, 112, 125, 140, 158, 175, 196, 200, 245, 250, 280, 316, 350, 392, 395, 400, 490, 500, 553, 560, 625, 632, 700, 784, 790, 875, 980, 1000, 1106, 1225, 1250, 1264, 1400, 1580, 1750, 1960, 1975, 2000, 2212, 2450, 2500, 2765, 2800, 3160, 3500, 3871, 3920, 3950, 4375, 4424, 4900, 5000, 5530, 6125, 6320, 7000, 7742, 7900, 8750, 8848, 9800, 9875, 10000, 11060, 12250, 13825, 14000, 15484, 15800, 17500, 19355, 19600, 19750, 22120, 24500, 27650, 30625, 30968, 31600, 35000, 38710, 39500, 44240, 49000, 49375, 55300, 61250, 61936, 69125, 70000, 77420, 79000, 96775, 98000, 98750, 110600, 122500, 138250, 154840, 158000, 193550, 197500, 221200, 245000, 276500, 309680, 345625, 387100, 395000, 483875, 490000, 553000, 691250, 774200, 790000, 967750, 1106000, 1382500, 1548400, 1935500, 2419375, 2765000, 3871000, 4838750, 5530000, 7742000, 9677500, 19355000, 38710000]

約数ペア:

[(1, 38710000), (2, 19355000), (4, 9677500), (5, 7742000), (7, 5530000), (8, 4838750), (10, 3871000), (14, 2765000), (16, 2419375), (20, 1935500), (25, 1548400), (28, 1382500), (35, 1106000), (40, 967750), (49, 790000), (50, 774200), (56, 691250), (70, 553000), (79, 490000), (80, 483875), (98, 395000), (100, 387100), (112, 345625), (125, 309680), (140, 276500), (158, 245000), (175, 221200), (196, 197500), (200, 193550), (245, 158000), (250, 154840), (280, 138250), (316, 122500), (350, 110600), (392, 98750), (395, 98000), (400, 96775), (490, 79000), (500, 77420), (553, 70000), (560, 69125), (625, 61936), (632, 61250), (700, 55300), (784, 49375), (790, 49000), (875, 44240), (980, 39500), (1000, 38710), (1106, 35000), (1225, 31600), (1250, 30968), (1264, 30625), (1400, 27650), (1580, 24500), (1750, 22120), (1960, 19750), (1975, 19600), (2000, 19355), (2212, 17500), (2450, 15800), (2500, 15484), (2765, 14000), (2800, 13825), (3160, 12250), (3500, 11060), (3871, 10000), (3920, 9875), (3950, 9800), (4375, 8848), (4424, 8750), (4900, 7900), (5000, 7742), (5530, 7000), (6125, 6320)]