20178552520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{277}}^1\times {\mathrm{13693}}^1$

素因数の和:14007

約数の個数: 128

約数和(自身を含む): 54819820800

約数和(自身を除く): 34641268280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 277, 280, 380, 532, 554, 665, 760, 1064, 1108, 1330, 1385, 1939, 2216, 2660, 2770, 3878, 5263, 5320, 5540, 7756, 9695, 10526, 11080, 13693, 15512, 19390, 21052, 26315, 27386, 36841, 38780, 42104, 52630, 54772, 68465, 73682, 77560, 95851, 105260, 109544, 136930, 147364, 184205, 191702, 210520, 260167, 273860, 294728, 368410, 383404, 479255, 520334, 547720, 736820, 766808, 958510, 1040668, 1300835, 1473640, 1821169, 1917020, 2081336, 2601670, 3642338, 3792961, 3834040, 5203340, 7284676, 7585922, 9105845, 10406680, 14569352, 15171844, 18211690, 18964805, 26550727, 30343688, 36423380, 37929610, 53101454, 72066259, 72846760, 75859220, 106202908, 132753635, 144132518, 151718440, 212405816, 265507270, 288265036, 360331295, 504463813, 531014540, 576530072, 720662590, 1008927626, 1062029080, 1441325180, 2017855252, 2522319065, 2882650360, 4035710504, 5044638130, 10089276260, 20178552520]

約数ペア:

[(1, 20178552520), (2, 10089276260), (4, 5044638130), (5, 4035710504), (7, 2882650360), (8, 2522319065), (10, 2017855252), (14, 1441325180), (19, 1062029080), (20, 1008927626), (28, 720662590), (35, 576530072), (38, 531014540), (40, 504463813), (56, 360331295), (70, 288265036), (76, 265507270), (95, 212405816), (133, 151718440), (140, 144132518), (152, 132753635), (190, 106202908), (266, 75859220), (277, 72846760), (280, 72066259), (380, 53101454), (532, 37929610), (554, 36423380), (665, 30343688), (760, 26550727), (1064, 18964805), (1108, 18211690), (1330, 15171844), (1385, 14569352), (1939, 10406680), (2216, 9105845), (2660, 7585922), (2770, 7284676), (3878, 5203340), (5263, 3834040), (5320, 3792961), (5540, 3642338), (7756, 2601670), (9695, 2081336), (10526, 1917020), (11080, 1821169), (13693, 1473640), (15512, 1300835), (19390, 1040668), (21052, 958510), (26315, 766808), (27386, 736820), (36841, 547720), (38780, 520334), (42104, 479255), (52630, 383404), (54772, 368410), (68465, 294728), (73682, 273860), (77560, 260167), (95851, 210520), (105260, 191702), (109544, 184205), (136930, 147364)]