20204496

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:321

約数の個数: 120

約数和(自身を含む): 62558496

約数和(自身を除く): 42354000

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 43, 48, 52, 72, 78, 86, 104, 117, 129, 144, 156, 172, 208, 234, 251, 258, 312, 344, 387, 468, 502, 516, 559, 624, 688, 753, 774, 936, 1004, 1032, 1118, 1506, 1548, 1677, 1872, 2008, 2064, 2236, 2259, 3012, 3096, 3263, 3354, 4016, 4472, 4518, 5031, 6024, 6192, 6526, 6708, 8944, 9036, 9789, 10062, 10793, 12048, 13052, 13416, 18072, 19578, 20124, 21586, 26104, 26832, 29367, 32379, 36144, 39156, 40248, 43172, 52208, 58734, 64758, 78312, 80496, 86344, 97137, 117468, 129516, 140309, 156624, 172688, 194274, 234936, 259032, 280618, 388548, 420927, 469872, 518064, 561236, 777096, 841854, 1122472, 1262781, 1554192, 1683708, 2244944, 2525562, 3367416, 5051124, 6734832, 10102248, 20204496]

約数ペア:

[(1, 20204496), (2, 10102248), (3, 6734832), (4, 5051124), (6, 3367416), (8, 2525562), (9, 2244944), (12, 1683708), (13, 1554192), (16, 1262781), (18, 1122472), (24, 841854), (26, 777096), (36, 561236), (39, 518064), (43, 469872), (48, 420927), (52, 388548), (72, 280618), (78, 259032), (86, 234936), (104, 194274), (117, 172688), (129, 156624), (144, 140309), (156, 129516), (172, 117468), (208, 97137), (234, 86344), (251, 80496), (258, 78312), (312, 64758), (344, 58734), (387, 52208), (468, 43172), (502, 40248), (516, 39156), (559, 36144), (624, 32379), (688, 29367), (753, 26832), (774, 26104), (936, 21586), (1004, 20124), (1032, 19578), (1118, 18072), (1506, 13416), (1548, 13052), (1677, 12048), (1872, 10793), (2008, 10062), (2064, 9789), (2236, 9036), (2259, 8944), (3012, 6708), (3096, 6526), (3263, 6192), (3354, 6024), (4016, 5031), (4472, 4518)]