20729140920

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{16447}}^1$

素因数の和:16859

約数の個数: 160

約数和(自身を含む): 69856300800

約数和(自身を除く): 49127159880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 270, 324, 360, 389, 405, 540, 648, 778, 810, 1080, 1167, 1556, 1620, 1945, 2334, 3112, 3240, 3501, 3890, 4668, 5835, 7002, 7780, 9336, 10503, 11670, 14004, 15560, 16447, 17505, 21006, 23340, 28008, 31509, 32894, 35010, 42012, 46680, 49341, 52515, 63018, 65788, 70020, 82235, 84024, 98682, 105030, 126036, 131576, 140040, 148023, 157545, 164470, 197364, 210060, 246705, 252072, 296046, 315090, 328940, 394728, 420120, 444069, 493410, 592092, 630180, 657880, 740115, 888138, 986820, 1184184, 1260360, 1332207, 1480230, 1776276, 1973640, 2220345, 2664414, 2960460, 3552552, 4440690, 5328828, 5920920, 6397883, 6661035, 8881380, 10657656, 12795766, 13322070, 17762760, 19193649, 25591532, 26644140, 31989415, 38387298, 51183064, 53288280, 57580947, 63978830, 76774596, 95968245, 115161894, 127957660, 153549192, 172742841, 191936490, 230323788, 255915320, 287904735, 345485682, 383872980, 460647576, 518228523, 575809470, 690971364, 767745960, 863714205, 1036457046, 1151618940, 1381942728, 1727428410, 2072914092, 2303237880, 2591142615, 3454856820, 4145828184, 5182285230, 6909713640, 10364570460, 20729140920]

約数ペア:

[(1, 20729140920), (2, 10364570460), (3, 6909713640), (4, 5182285230), (5, 4145828184), (6, 3454856820), (8, 2591142615), (9, 2303237880), (10, 2072914092), (12, 1727428410), (15, 1381942728), (18, 1151618940), (20, 1036457046), (24, 863714205), (27, 767745960), (30, 690971364), (36, 575809470), (40, 518228523), (45, 460647576), (54, 383872980), (60, 345485682), (72, 287904735), (81, 255915320), (90, 230323788), (108, 191936490), (120, 172742841), (135, 153549192), (162, 127957660), (180, 115161894), (216, 95968245), (270, 76774596), (324, 63978830), (360, 57580947), (389, 53288280), (405, 51183064), (540, 38387298), (648, 31989415), (778, 26644140), (810, 25591532), (1080, 19193649), (1167, 17762760), (1556, 13322070), (1620, 12795766), (1945, 10657656), (2334, 8881380), (3112, 6661035), (3240, 6397883), (3501, 5920920), (3890, 5328828), (4668, 4440690), (5835, 3552552), (7002, 2960460), (7780, 2664414), (9336, 2220345), (10503, 1973640), (11670, 1776276), (14004, 1480230), (15560, 1332207), (16447, 1260360), (17505, 1184184), (21006, 986820), (23340, 888138), (28008, 740115), (31509, 657880), (32894, 630180), (35010, 592092), (42012, 493410), (46680, 444069), (49341, 420120), (52515, 394728), (63018, 328940), (65788, 315090), (70020, 296046), (82235, 252072), (84024, 246705), (98682, 210060), (105030, 197364), (126036, 164470), (131576, 157545), (140040, 148023)]