21420360

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:252

約数の個数: 192

約数和(自身を含む): 78624000

約数和(自身を除く): 57203640

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 23, 24, 26, 30, 36, 39, 40, 45, 46, 52, 60, 65, 69, 72, 78, 90, 92, 104, 115, 117, 120, 130, 138, 156, 180, 184, 195, 199, 207, 230, 234, 260, 276, 299, 312, 345, 360, 390, 398, 414, 460, 468, 520, 552, 585, 597, 598, 690, 780, 796, 828, 897, 920, 936, 995, 1035, 1170, 1194, 1196, 1380, 1495, 1560, 1592, 1656, 1791, 1794, 1990, 2070, 2340, 2388, 2392, 2587, 2691, 2760, 2985, 2990, 3582, 3588, 3980, 4140, 4485, 4577, 4680, 4776, 5174, 5382, 5970, 5980, 7164, 7176, 7761, 7960, 8280, 8955, 8970, 9154, 10348, 10764, 11940, 11960, 12935, 13455, 13731, 14328, 15522, 17910, 17940, 18308, 20696, 21528, 22885, 23283, 23880, 25870, 26910, 27462, 31044, 35820, 35880, 36616, 38805, 41193, 45770, 46566, 51740, 53820, 54924, 59501, 62088, 68655, 71640, 77610, 82386, 91540, 93132, 103480, 107640, 109848, 116415, 119002, 137310, 155220, 164772, 178503, 183080, 186264, 205965, 232830, 238004, 274620, 297505, 310440, 329544, 357006, 411930, 465660, 476008, 535509, 549240, 595010, 714012, 823860, 892515, 931320, 1071018, 1190020, 1428024, 1647720, 1785030, 2142036, 2380040, 2677545, 3570060, 4284072, 5355090, 7140120, 10710180, 21420360]

約数ペア:

[(1, 21420360), (2, 10710180), (3, 7140120), (4, 5355090), (5, 4284072), (6, 3570060), (8, 2677545), (9, 2380040), (10, 2142036), (12, 1785030), (13, 1647720), (15, 1428024), (18, 1190020), (20, 1071018), (23, 931320), (24, 892515), (26, 823860), (30, 714012), (36, 595010), (39, 549240), (40, 535509), (45, 476008), (46, 465660), (52, 411930), (60, 357006), (65, 329544), (69, 310440), (72, 297505), (78, 274620), (90, 238004), (92, 232830), (104, 205965), (115, 186264), (117, 183080), (120, 178503), (130, 164772), (138, 155220), (156, 137310), (180, 119002), (184, 116415), (195, 109848), (199, 107640), (207, 103480), (230, 93132), (234, 91540), (260, 82386), (276, 77610), (299, 71640), (312, 68655), (345, 62088), (360, 59501), (390, 54924), (398, 53820), (414, 51740), (460, 46566), (468, 45770), (520, 41193), (552, 38805), (585, 36616), (597, 35880), (598, 35820), (690, 31044), (780, 27462), (796, 26910), (828, 25870), (897, 23880), (920, 23283), (936, 22885), (995, 21528), (1035, 20696), (1170, 18308), (1194, 17940), (1196, 17910), (1380, 15522), (1495, 14328), (1560, 13731), (1592, 13455), (1656, 12935), (1791, 11960), (1794, 11940), (1990, 10764), (2070, 10348), (2340, 9154), (2388, 8970), (2392, 8955), (2587, 8280), (2691, 7960), (2760, 7761), (2985, 7176), (2990, 7164), (3582, 5980), (3588, 5970), (3980, 5382), (4140, 5174), (4485, 4776), (4577, 4680)]