19845044640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{1663}}^1\times {\mathrm{8287}}^1$

素因数の和:9971

約数の個数: 144

約数和(自身を含む): 67770114048

約数和(自身を除く): 47925069408

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 1663, 3326, 4989, 6652, 8287, 8315, 9978, 13304, 14967, 16574, 16630, 19956, 24861, 24945, 26608, 29934, 33148, 33260, 39912, 41435, 49722, 49890, 53216, 59868, 66296, 66520, 74583, 74835, 79824, 82870, 99444, 99780, 119736, 124305, 132592, 133040, 149166, 149670, 159648, 165740, 198888, 199560, 239472, 248610, 265184, 266080, 298332, 299340, 331480, 372915, 397776, 399120, 478944, 497220, 596664, 598680, 662960, 745830, 795552, 798240, 994440, 1193328, 1197360, 1325920, 1491660, 1988880, 2386656, 2394720, 2983320, 3977760, 5966640, 11933280, 13781281, 27562562, 41343843, 55125124, 68906405, 82687686, 110250248, 124031529, 137812810, 165375372, 206719215, 220500496, 248063058, 275625620, 330750744, 413438430, 441000992, 496126116, 551251240, 620157645, 661501488, 826876860, 992252232, 1102502480, 1240315290, 1323002976, 1653753720, 1984504464, 2205004960, 2480630580, 3307507440, 3969008928, 4961261160, 6615014880, 9922522320, 19845044640]

約数ペア:

[(1, 19845044640), (2, 9922522320), (3, 6615014880), (4, 4961261160), (5, 3969008928), (6, 3307507440), (8, 2480630580), (9, 2205004960), (10, 1984504464), (12, 1653753720), (15, 1323002976), (16, 1240315290), (18, 1102502480), (20, 992252232), (24, 826876860), (30, 661501488), (32, 620157645), (36, 551251240), (40, 496126116), (45, 441000992), (48, 413438430), (60, 330750744), (72, 275625620), (80, 248063058), (90, 220500496), (96, 206719215), (120, 165375372), (144, 137812810), (160, 124031529), (180, 110250248), (240, 82687686), (288, 68906405), (360, 55125124), (480, 41343843), (720, 27562562), (1440, 13781281), (1663, 11933280), (3326, 5966640), (4989, 3977760), (6652, 2983320), (8287, 2394720), (8315, 2386656), (9978, 1988880), (13304, 1491660), (14967, 1325920), (16574, 1197360), (16630, 1193328), (19956, 994440), (24861, 798240), (24945, 795552), (26608, 745830), (29934, 662960), (33148, 598680), (33260, 596664), (39912, 497220), (41435, 478944), (49722, 399120), (49890, 397776), (53216, 372915), (59868, 331480), (66296, 299340), (66520, 298332), (74583, 266080), (74835, 265184), (79824, 248610), (82870, 239472), (99444, 199560), (99780, 198888), (119736, 165740), (124305, 159648), (132592, 149670), (133040, 149166)]