20989155168

素因数分解:

$2^5\times 3^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{17431}}^1$

素因数の和:17597

約数の個数: 144

約数和(自身を含む): 61847132256

約数和(自身を除く): 40857977088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 37, 48, 72, 74, 96, 111, 113, 144, 148, 222, 226, 288, 296, 333, 339, 444, 452, 592, 666, 678, 888, 904, 1017, 1184, 1332, 1356, 1776, 1808, 2034, 2664, 2712, 3552, 3616, 4068, 4181, 5328, 5424, 8136, 8362, 10656, 10848, 12543, 16272, 16724, 17431, 25086, 32544, 33448, 34862, 37629, 50172, 52293, 66896, 69724, 75258, 100344, 104586, 133792, 139448, 150516, 156879, 200688, 209172, 278896, 301032, 313758, 401376, 418344, 557792, 602064, 627516, 644947, 836688, 1204128, 1255032, 1289894, 1673376, 1934841, 1969703, 2510064, 2579788, 3869682, 3939406, 5020128, 5159576, 5804523, 5909109, 7739364, 7878812, 10319152, 11609046, 11818218, 15478728, 15757624, 17727327, 20638304, 23218092, 23636436, 30957456, 31515248, 35454654, 46436184, 47272872, 61914912, 63030496, 70909308, 72879011, 92872368, 94545744, 141818616, 145758022, 185744736, 189091488, 218637033, 283637232, 291516044, 437274066, 567274464, 583032088, 655911099, 874548132, 1166064176, 1311822198, 1749096264, 2332128352, 2623644396, 3498192528, 5247288792, 6996385056, 10494577584, 20989155168]

約数ペア:

[(1, 20989155168), (2, 10494577584), (3, 6996385056), (4, 5247288792), (6, 3498192528), (8, 2623644396), (9, 2332128352), (12, 1749096264), (16, 1311822198), (18, 1166064176), (24, 874548132), (32, 655911099), (36, 583032088), (37, 567274464), (48, 437274066), (72, 291516044), (74, 283637232), (96, 218637033), (111, 189091488), (113, 185744736), (144, 145758022), (148, 141818616), (222, 94545744), (226, 92872368), (288, 72879011), (296, 70909308), (333, 63030496), (339, 61914912), (444, 47272872), (452, 46436184), (592, 35454654), (666, 31515248), (678, 30957456), (888, 23636436), (904, 23218092), (1017, 20638304), (1184, 17727327), (1332, 15757624), (1356, 15478728), (1776, 11818218), (1808, 11609046), (2034, 10319152), (2664, 7878812), (2712, 7739364), (3552, 5909109), (3616, 5804523), (4068, 5159576), (4181, 5020128), (5328, 3939406), (5424, 3869682), (8136, 2579788), (8362, 2510064), (10656, 1969703), (10848, 1934841), (12543, 1673376), (16272, 1289894), (16724, 1255032), (17431, 1204128), (25086, 836688), (32544, 644947), (33448, 627516), (34862, 602064), (37629, 557792), (50172, 418344), (52293, 401376), (66896, 313758), (69724, 301032), (75258, 278896), (100344, 209172), (104586, 200688), (133792, 156879), (139448, 150516)]