20121409280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{54773}}^1$

素因数の和:54842

約数の個数: 144

約数和(自身を含む): 56426860224

約数和(自身を除く): 36305450944

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 80, 82, 112, 128, 140, 160, 164, 205, 224, 256, 280, 287, 320, 328, 410, 448, 560, 574, 640, 656, 820, 896, 1120, 1148, 1280, 1312, 1435, 1640, 1792, 2240, 2296, 2624, 2870, 3280, 4480, 4592, 5248, 5740, 6560, 8960, 9184, 10496, 11480, 13120, 18368, 22960, 26240, 36736, 45920, 52480, 54773, 73472, 91840, 109546, 183680, 219092, 273865, 367360, 383411, 438184, 547730, 766822, 876368, 1095460, 1533644, 1752736, 1917055, 2190920, 2245693, 3067288, 3505472, 3834110, 4381840, 4491386, 6134576, 7010944, 7668220, 8763680, 8982772, 11228465, 12269152, 14021888, 15336440, 15719851, 17527360, 17965544, 22456930, 24538304, 30672880, 31439702, 35054720, 35931088, 44913860, 49076608, 61345760, 62879404, 70109440, 71862176, 78599255, 89827720, 98153216, 122691520, 125758808, 143724352, 157198510, 179655440, 245383040, 251517616, 287448704, 314397020, 359310880, 490766080, 503035232, 574897408, 628794040, 718621760, 1006070464, 1257588080, 1437243520, 2012140928, 2515176160, 2874487040, 4024281856, 5030352320, 10060704640, 20121409280]

約数ペア:

[(1, 20121409280), (2, 10060704640), (4, 5030352320), (5, 4024281856), (7, 2874487040), (8, 2515176160), (10, 2012140928), (14, 1437243520), (16, 1257588080), (20, 1006070464), (28, 718621760), (32, 628794040), (35, 574897408), (40, 503035232), (41, 490766080), (56, 359310880), (64, 314397020), (70, 287448704), (80, 251517616), (82, 245383040), (112, 179655440), (128, 157198510), (140, 143724352), (160, 125758808), (164, 122691520), (205, 98153216), (224, 89827720), (256, 78599255), (280, 71862176), (287, 70109440), (320, 62879404), (328, 61345760), (410, 49076608), (448, 44913860), (560, 35931088), (574, 35054720), (640, 31439702), (656, 30672880), (820, 24538304), (896, 22456930), (1120, 17965544), (1148, 17527360), (1280, 15719851), (1312, 15336440), (1435, 14021888), (1640, 12269152), (1792, 11228465), (2240, 8982772), (2296, 8763680), (2624, 7668220), (2870, 7010944), (3280, 6134576), (4480, 4491386), (4592, 4381840), (5248, 3834110), (5740, 3505472), (6560, 3067288), (8960, 2245693), (9184, 2190920), (10496, 1917055), (11480, 1752736), (13120, 1533644), (18368, 1095460), (22960, 876368), (26240, 766822), (36736, 547730), (45920, 438184), (52480, 383411), (54773, 367360), (73472, 273865), (91840, 219092), (109546, 183680)]