81454480

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{593}}^1$

素因数の和:724

約数の個数: 80

約数和(自身を含む): 202848624

約数和(自身を除く): 121394144

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 101, 136, 170, 202, 272, 340, 404, 505, 593, 680, 808, 1010, 1186, 1360, 1616, 1717, 2020, 2372, 2965, 3434, 4040, 4744, 5930, 6868, 8080, 8585, 9488, 10081, 11860, 13736, 17170, 20162, 23720, 27472, 34340, 40324, 47440, 50405, 59893, 68680, 80648, 100810, 119786, 137360, 161296, 201620, 239572, 299465, 403240, 479144, 598930, 806480, 958288, 1018181, 1197860, 2036362, 2395720, 4072724, 4791440, 5090905, 8145448, 10181810, 16290896, 20363620, 40727240, 81454480]

約数ペア:

[(1, 81454480), (2, 40727240), (4, 20363620), (5, 16290896), (8, 10181810), (10, 8145448), (16, 5090905), (17, 4791440), (20, 4072724), (34, 2395720), (40, 2036362), (68, 1197860), (80, 1018181), (85, 958288), (101, 806480), (136, 598930), (170, 479144), (202, 403240), (272, 299465), (340, 239572), (404, 201620), (505, 161296), (593, 137360), (680, 119786), (808, 100810), (1010, 80648), (1186, 68680), (1360, 59893), (1616, 50405), (1717, 47440), (2020, 40324), (2372, 34340), (2965, 27472), (3434, 23720), (4040, 20162), (4744, 17170), (5930, 13736), (6868, 11860), (8080, 10081), (8585, 9488)]