20942460

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1511}}^1$

素因数の和:1544

約数の個数: 144

約数和(自身を含む): 79252992

約数和(自身を除く): 58310532

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 660, 693, 770, 924, 990, 1155, 1260, 1386, 1511, 1540, 1980, 2310, 2772, 3022, 3465, 4533, 4620, 6044, 6930, 7555, 9066, 10577, 13599, 13860, 15110, 16621, 18132, 21154, 22665, 27198, 30220, 31731, 33242, 42308, 45330, 49863, 52885, 54396, 63462, 66484, 67995, 83105, 90660, 95193, 99726, 105770, 116347, 126924, 135990, 149589, 158655, 166210, 190386, 199452, 211540, 232694, 249315, 271980, 299178, 317310, 332420, 349041, 380772, 465388, 475965, 498630, 581735, 598356, 634620, 698082, 747945, 951930, 997260, 1047123, 1163470, 1396164, 1495890, 1745205, 1903860, 2094246, 2326940, 2991780, 3490410, 4188492, 5235615, 6980820, 10471230, 20942460]

約数ペア:

[(1, 20942460), (2, 10471230), (3, 6980820), (4, 5235615), (5, 4188492), (6, 3490410), (7, 2991780), (9, 2326940), (10, 2094246), (11, 1903860), (12, 1745205), (14, 1495890), (15, 1396164), (18, 1163470), (20, 1047123), (21, 997260), (22, 951930), (28, 747945), (30, 698082), (33, 634620), (35, 598356), (36, 581735), (42, 498630), (44, 475965), (45, 465388), (55, 380772), (60, 349041), (63, 332420), (66, 317310), (70, 299178), (77, 271980), (84, 249315), (90, 232694), (99, 211540), (105, 199452), (110, 190386), (126, 166210), (132, 158655), (140, 149589), (154, 135990), (165, 126924), (180, 116347), (198, 105770), (210, 99726), (220, 95193), (231, 90660), (252, 83105), (308, 67995), (315, 66484), (330, 63462), (385, 54396), (396, 52885), (420, 49863), (462, 45330), (495, 42308), (630, 33242), (660, 31731), (693, 30220), (770, 27198), (924, 22665), (990, 21154), (1155, 18132), (1260, 16621), (1386, 15110), (1511, 13860), (1540, 13599), (1980, 10577), (2310, 9066), (2772, 7555), (3022, 6930), (3465, 6044), (4533, 4620)]