21052609920

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{13007}}^1$

素因数の和:13313

約数の個数: 192

約数和(自身を含む): 72961611840

約数和(自身を除く): 51909001920

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, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 281, 288, 320, 360, 384, 480, 562, 576, 640, 720, 843, 960, 1124, 1152, 1405, 1440, 1686, 1920, 2248, 2529, 2810, 2880, 3372, 4215, 4496, 5058, 5620, 5760, 6744, 8430, 8992, 10116, 11240, 12645, 13007, 13488, 16860, 17984, 20232, 22480, 25290, 26014, 26976, 33720, 35968, 39021, 40464, 44960, 50580, 52028, 53952, 65035, 67440, 78042, 80928, 89920, 101160, 104056, 107904, 117063, 130070, 134880, 156084, 161856, 179840, 195105, 202320, 208112, 234126, 260140, 269760, 312168, 323712, 390210, 404640, 416224, 468252, 520280, 539520, 585315, 624336, 780420, 809280, 832448, 936504, 1040560, 1170630, 1248672, 1560840, 1618560, 1664896, 1873008, 2081120, 2341260, 2497344, 3121680, 3654967, 3746016, 4162240, 4682520, 4994688, 6243360, 7309934, 7492032, 8324480, 9365040, 10964901, 12486720, 14619868, 14984064, 18274835, 18730080, 21929802, 24973440, 29239736, 32894703, 36549670, 37460160, 43859604, 54824505, 58479472, 65789406, 73099340, 74920320, 87719208, 109649010, 116958944, 131578812, 146198680, 164473515, 175438416, 219298020, 233917888, 263157624, 292397360, 328947030, 350876832, 438596040, 467835776, 526315248, 584794720, 657894060, 701753664, 877192080, 1052630496, 1169589440, 1315788120, 1403507328, 1754384160, 2105260992, 2339178880, 2631576240, 3508768320, 4210521984, 5263152480, 7017536640, 10526304960, 21052609920]

約数ペア:

[(1, 21052609920), (2, 10526304960), (3, 7017536640), (4, 5263152480), (5, 4210521984), (6, 3508768320), (8, 2631576240), (9, 2339178880), (10, 2105260992), (12, 1754384160), (15, 1403507328), (16, 1315788120), (18, 1169589440), (20, 1052630496), (24, 877192080), (30, 701753664), (32, 657894060), (36, 584794720), (40, 526315248), (45, 467835776), (48, 438596040), (60, 350876832), (64, 328947030), (72, 292397360), (80, 263157624), (90, 233917888), (96, 219298020), (120, 175438416), (128, 164473515), (144, 146198680), (160, 131578812), (180, 116958944), (192, 109649010), (240, 87719208), (281, 74920320), (288, 73099340), (320, 65789406), (360, 58479472), (384, 54824505), (480, 43859604), (562, 37460160), (576, 36549670), (640, 32894703), (720, 29239736), (843, 24973440), (960, 21929802), (1124, 18730080), (1152, 18274835), (1405, 14984064), (1440, 14619868), (1686, 12486720), (1920, 10964901), (2248, 9365040), (2529, 8324480), (2810, 7492032), (2880, 7309934), (3372, 6243360), (4215, 4994688), (4496, 4682520), (5058, 4162240), (5620, 3746016), (5760, 3654967), (6744, 3121680), (8430, 2497344), (8992, 2341260), (10116, 2081120), (11240, 1873008), (12645, 1664896), (13007, 1618560), (13488, 1560840), (16860, 1248672), (17984, 1170630), (20232, 1040560), (22480, 936504), (25290, 832448), (26014, 809280), (26976, 780420), (33720, 624336), (35968, 585315), (39021, 539520), (40464, 520280), (44960, 468252), (50580, 416224), (52028, 404640), (53952, 390210), (65035, 323712), (67440, 312168), (78042, 269760), (80928, 260140), (89920, 234126), (101160, 208112), (104056, 202320), (107904, 195105), (117063, 179840), (130070, 161856), (134880, 156084)]