20996912175

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1\times {\mathrm{521}}^1$

素因数の和:1001

約数の個数: 96

約数和(自身を含む): 36985061376

約数和(自身を除く): 15988149201

約数列:

[1, 3, 5, 15, 23, 25, 61, 69, 75, 115, 183, 305, 345, 383, 521, 575, 915, 1149, 1403, 1525, 1563, 1725, 1915, 2605, 4209, 4575, 5745, 7015, 7815, 8809, 9575, 11983, 13025, 21045, 23363, 26427, 28725, 31781, 35075, 35949, 39075, 44045, 59915, 70089, 95343, 105225, 116815, 132135, 158905, 179745, 199543, 220225, 299575, 350445, 476715, 537349, 584075, 598629, 660675, 730963, 794525, 898725, 997715, 1612047, 1752225, 2192889, 2383575, 2686745, 2993145, 3654815, 4589489, 4988575, 8060235, 10964445, 12172123, 13433725, 13768467, 14965725, 18274075, 22947445, 36516369, 40301175, 54822225, 60860615, 68842335, 114737225, 182581845, 279958829, 304303075, 344211675, 839876487, 912909225, 1399794145, 4199382435, 6998970725, 20996912175]

約数ペア:

[(1, 20996912175), (3, 6998970725), (5, 4199382435), (15, 1399794145), (23, 912909225), (25, 839876487), (61, 344211675), (69, 304303075), (75, 279958829), (115, 182581845), (183, 114737225), (305, 68842335), (345, 60860615), (383, 54822225), (521, 40301175), (575, 36516369), (915, 22947445), (1149, 18274075), (1403, 14965725), (1525, 13768467), (1563, 13433725), (1725, 12172123), (1915, 10964445), (2605, 8060235), (4209, 4988575), (4575, 4589489), (5745, 3654815), (7015, 2993145), (7815, 2686745), (8809, 2383575), (9575, 2192889), (11983, 1752225), (13025, 1612047), (21045, 997715), (23363, 898725), (26427, 794525), (28725, 730963), (31781, 660675), (35075, 598629), (35949, 584075), (39075, 537349), (44045, 476715), (59915, 350445), (70089, 299575), (95343, 220225), (105225, 199543), (116815, 179745), (132135, 158905)]