21790652520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1995481}}^1$

素因数の和:1995515

約数の個数: 128

約数和(自身を含む): 80457834240

約数和(自身を除く): 58667181720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 182, 195, 210, 260, 273, 280, 312, 364, 390, 420, 455, 520, 546, 728, 780, 840, 910, 1092, 1365, 1560, 1820, 2184, 2730, 3640, 5460, 10920, 1995481, 3990962, 5986443, 7981924, 9977405, 11972886, 13968367, 15963848, 19954810, 23945772, 25941253, 27936734, 29932215, 39909620, 41905101, 47891544, 51882506, 55873468, 59864430, 69841835, 77823759, 79819240, 83810202, 103765012, 111746936, 119728860, 129706265, 139683670, 155647518, 167620404, 181588771, 207530024, 209525505, 239457720, 259412530, 279367340, 311295036, 335240808, 363177542, 389118795, 419051010, 518825060, 544766313, 558734680, 622590072, 726355084, 778237590, 838102020, 907943855, 1037650120, 1089532626, 1452710168, 1556475180, 1676204040, 1815887710, 2179065252, 2723831565, 3112950360, 3631775420, 4358130504, 5447663130, 7263550840, 10895326260, 21790652520]

約数ペア:

[(1, 21790652520), (2, 10895326260), (3, 7263550840), (4, 5447663130), (5, 4358130504), (6, 3631775420), (7, 3112950360), (8, 2723831565), (10, 2179065252), (12, 1815887710), (13, 1676204040), (14, 1556475180), (15, 1452710168), (20, 1089532626), (21, 1037650120), (24, 907943855), (26, 838102020), (28, 778237590), (30, 726355084), (35, 622590072), (39, 558734680), (40, 544766313), (42, 518825060), (52, 419051010), (56, 389118795), (60, 363177542), (65, 335240808), (70, 311295036), (78, 279367340), (84, 259412530), (91, 239457720), (104, 209525505), (105, 207530024), (120, 181588771), (130, 167620404), (140, 155647518), (156, 139683670), (168, 129706265), (182, 119728860), (195, 111746936), (210, 103765012), (260, 83810202), (273, 79819240), (280, 77823759), (312, 69841835), (364, 59864430), (390, 55873468), (420, 51882506), (455, 47891544), (520, 41905101), (546, 39909620), (728, 29932215), (780, 27936734), (840, 25941253), (910, 23945772), (1092, 19954810), (1365, 15963848), (1560, 13968367), (1820, 11972886), (2184, 9977405), (2730, 7981924), (3640, 5986443), (5460, 3990962), (10920, 1995481)]