20288520

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:204

約数の個数: 192

約数和(自身を含む): 77051520

約数和(自身を除く): 56763000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 83, 84, 90, 97, 105, 120, 126, 140, 166, 168, 180, 194, 210, 249, 252, 280, 291, 315, 332, 360, 388, 415, 420, 485, 498, 504, 581, 582, 630, 664, 679, 747, 776, 830, 840, 873, 970, 996, 1162, 1164, 1245, 1260, 1358, 1455, 1494, 1660, 1743, 1746, 1940, 1992, 2037, 2324, 2328, 2490, 2520, 2716, 2905, 2910, 2988, 3320, 3395, 3486, 3492, 3735, 3880, 4074, 4365, 4648, 4980, 5229, 5432, 5810, 5820, 5976, 6111, 6790, 6972, 6984, 7470, 8051, 8148, 8715, 8730, 9960, 10185, 10458, 11620, 11640, 12222, 13580, 13944, 14940, 16102, 16296, 17430, 17460, 20370, 20916, 23240, 24153, 24444, 26145, 27160, 29880, 30555, 32204, 34860, 34920, 40255, 40740, 41832, 48306, 48888, 52290, 56357, 61110, 64408, 69720, 72459, 80510, 81480, 96612, 104580, 112714, 120765, 122220, 144918, 161020, 169071, 193224, 209160, 225428, 241530, 244440, 281785, 289836, 322040, 338142, 362295, 450856, 483060, 507213, 563570, 579672, 676284, 724590, 845355, 966120, 1014426, 1127140, 1352568, 1449180, 1690710, 2028852, 2254280, 2536065, 2898360, 3381420, 4057704, 5072130, 6762840, 10144260, 20288520]

約数ペア:

[(1, 20288520), (2, 10144260), (3, 6762840), (4, 5072130), (5, 4057704), (6, 3381420), (7, 2898360), (8, 2536065), (9, 2254280), (10, 2028852), (12, 1690710), (14, 1449180), (15, 1352568), (18, 1127140), (20, 1014426), (21, 966120), (24, 845355), (28, 724590), (30, 676284), (35, 579672), (36, 563570), (40, 507213), (42, 483060), (45, 450856), (56, 362295), (60, 338142), (63, 322040), (70, 289836), (72, 281785), (83, 244440), (84, 241530), (90, 225428), (97, 209160), (105, 193224), (120, 169071), (126, 161020), (140, 144918), (166, 122220), (168, 120765), (180, 112714), (194, 104580), (210, 96612), (249, 81480), (252, 80510), (280, 72459), (291, 69720), (315, 64408), (332, 61110), (360, 56357), (388, 52290), (415, 48888), (420, 48306), (485, 41832), (498, 40740), (504, 40255), (581, 34920), (582, 34860), (630, 32204), (664, 30555), (679, 29880), (747, 27160), (776, 26145), (830, 24444), (840, 24153), (873, 23240), (970, 20916), (996, 20370), (1162, 17460), (1164, 17430), (1245, 16296), (1260, 16102), (1358, 14940), (1455, 13944), (1494, 13580), (1660, 12222), (1743, 11640), (1746, 11620), (1940, 10458), (1992, 10185), (2037, 9960), (2324, 8730), (2328, 8715), (2490, 8148), (2520, 8051), (2716, 7470), (2905, 6984), (2910, 6972), (2988, 6790), (3320, 6111), (3395, 5976), (3486, 5820), (3492, 5810), (3735, 5432), (3880, 5229), (4074, 4980), (4365, 4648)]