1720979715

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:290

約数の個数: 192

約数和(自身を含む): 3706601472

約数和(自身を除く): 1985621757

約数列:

[1, 3, 5, 7, 13, 15, 21, 23, 35, 39, 41, 49, 65, 69, 91, 105, 115, 123, 147, 161, 191, 195, 205, 245, 273, 287, 299, 345, 455, 483, 533, 573, 615, 637, 735, 805, 861, 897, 943, 955, 1127, 1337, 1365, 1435, 1495, 1599, 1911, 2009, 2093, 2415, 2483, 2665, 2829, 2865, 3185, 3381, 3731, 4011, 4305, 4393, 4485, 4715, 5635, 6027, 6279, 6601, 6685, 7449, 7831, 7995, 9359, 9555, 10045, 10465, 11193, 12259, 12415, 13179, 14145, 14651, 16905, 17381, 18655, 19803, 20055, 21965, 23493, 26117, 28077, 30135, 30751, 31395, 33005, 36777, 37245, 39155, 43953, 46207, 46795, 52143, 54817, 55965, 57109, 61295, 65895, 73255, 78351, 85813, 86905, 92253, 99015, 101803, 117465, 121667, 130585, 138621, 140385, 153755, 164451, 171327, 180113, 183885, 215257, 219765, 231035, 257439, 260715, 274085, 285545, 305409, 365001, 383719, 391755, 399763, 429065, 461265, 509015, 540339, 600691, 608335, 645771, 693105, 712621, 822255, 856635, 900565, 1076285, 1151157, 1199289, 1260791, 1287195, 1527045, 1802073, 1825005, 1918595, 1998815, 2137863, 2341469, 2701695, 2798341, 3003455, 3228855, 3563105, 3782373, 4988347, 5755785, 5996445, 6303955, 7024407, 8395023, 8825537, 9010365, 10689315, 11707345, 13991705, 14965041, 16390283, 18911865, 24941735, 26476611, 35122035, 41975115, 44127685, 49170849, 74825205, 81951415, 114731981, 132383055, 245854245, 344195943, 573659905, 1720979715]

約数ペア:

[(1, 1720979715), (3, 573659905), (5, 344195943), (7, 245854245), (13, 132383055), (15, 114731981), (21, 81951415), (23, 74825205), (35, 49170849), (39, 44127685), (41, 41975115), (49, 35122035), (65, 26476611), (69, 24941735), (91, 18911865), (105, 16390283), (115, 14965041), (123, 13991705), (147, 11707345), (161, 10689315), (191, 9010365), (195, 8825537), (205, 8395023), (245, 7024407), (273, 6303955), (287, 5996445), (299, 5755785), (345, 4988347), (455, 3782373), (483, 3563105), (533, 3228855), (573, 3003455), (615, 2798341), (637, 2701695), (735, 2341469), (805, 2137863), (861, 1998815), (897, 1918595), (943, 1825005), (955, 1802073), (1127, 1527045), (1337, 1287195), (1365, 1260791), (1435, 1199289), (1495, 1151157), (1599, 1076285), (1911, 900565), (2009, 856635), (2093, 822255), (2415, 712621), (2483, 693105), (2665, 645771), (2829, 608335), (2865, 600691), (3185, 540339), (3381, 509015), (3731, 461265), (4011, 429065), (4305, 399763), (4393, 391755), (4485, 383719), (4715, 365001), (5635, 305409), (6027, 285545), (6279, 274085), (6601, 260715), (6685, 257439), (7449, 231035), (7831, 219765), (7995, 215257), (9359, 183885), (9555, 180113), (10045, 171327), (10465, 164451), (11193, 153755), (12259, 140385), (12415, 138621), (13179, 130585), (14145, 121667), (14651, 117465), (16905, 101803), (17381, 99015), (18655, 92253), (19803, 86905), (20055, 85813), (21965, 78351), (23493, 73255), (26117, 65895), (28077, 61295), (30135, 57109), (30751, 55965), (31395, 54817), (33005, 52143), (36777, 46795), (37245, 46207), (39155, 43953)]