19585580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{199}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 51072000

約数和(自身を除く): 31486420

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 37, 38, 70, 74, 76, 95, 133, 140, 148, 185, 190, 199, 259, 266, 370, 380, 398, 518, 532, 665, 703, 740, 796, 995, 1036, 1295, 1330, 1393, 1406, 1990, 2590, 2660, 2786, 2812, 3515, 3781, 3980, 4921, 5180, 5572, 6965, 7030, 7363, 7562, 9842, 13930, 14060, 14726, 15124, 18905, 19684, 24605, 26467, 27860, 29452, 36815, 37810, 49210, 51541, 52934, 73630, 75620, 98420, 103082, 105868, 132335, 139897, 147260, 206164, 257705, 264670, 279794, 515410, 529340, 559588, 699485, 979279, 1030820, 1398970, 1958558, 2797940, 3917116, 4896395, 9792790, 19585580]

約数ペア:

[(1, 19585580), (2, 9792790), (4, 4896395), (5, 3917116), (7, 2797940), (10, 1958558), (14, 1398970), (19, 1030820), (20, 979279), (28, 699485), (35, 559588), (37, 529340), (38, 515410), (70, 279794), (74, 264670), (76, 257705), (95, 206164), (133, 147260), (140, 139897), (148, 132335), (185, 105868), (190, 103082), (199, 98420), (259, 75620), (266, 73630), (370, 52934), (380, 51541), (398, 49210), (518, 37810), (532, 36815), (665, 29452), (703, 27860), (740, 26467), (796, 24605), (995, 19684), (1036, 18905), (1295, 15124), (1330, 14726), (1393, 14060), (1406, 13930), (1990, 9842), (2590, 7562), (2660, 7363), (2786, 7030), (2812, 6965), (3515, 5572), (3781, 5180), (3980, 4921)]