21892320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:705

約数の個数: 144

約数和(自身を含む): 78073632

約数和(自身を除く): 56181312

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 30, 32, 36, 40, 45, 46, 48, 60, 69, 72, 80, 90, 92, 96, 115, 120, 138, 144, 160, 180, 184, 207, 230, 240, 276, 288, 345, 360, 368, 414, 460, 480, 552, 661, 690, 720, 736, 828, 920, 1035, 1104, 1322, 1380, 1440, 1656, 1840, 1983, 2070, 2208, 2644, 2760, 3305, 3312, 3680, 3966, 4140, 5288, 5520, 5949, 6610, 6624, 7932, 8280, 9915, 10576, 11040, 11898, 13220, 15203, 15864, 16560, 19830, 21152, 23796, 26440, 29745, 30406, 31728, 33120, 39660, 45609, 47592, 52880, 59490, 60812, 63456, 76015, 79320, 91218, 95184, 105760, 118980, 121624, 136827, 152030, 158640, 182436, 190368, 228045, 237960, 243248, 273654, 304060, 317280, 364872, 456090, 475920, 486496, 547308, 608120, 684135, 729744, 912180, 951840, 1094616, 1216240, 1368270, 1459488, 1824360, 2189232, 2432480, 2736540, 3648720, 4378464, 5473080, 7297440, 10946160, 21892320]

約数ペア:

[(1, 21892320), (2, 10946160), (3, 7297440), (4, 5473080), (5, 4378464), (6, 3648720), (8, 2736540), (9, 2432480), (10, 2189232), (12, 1824360), (15, 1459488), (16, 1368270), (18, 1216240), (20, 1094616), (23, 951840), (24, 912180), (30, 729744), (32, 684135), (36, 608120), (40, 547308), (45, 486496), (46, 475920), (48, 456090), (60, 364872), (69, 317280), (72, 304060), (80, 273654), (90, 243248), (92, 237960), (96, 228045), (115, 190368), (120, 182436), (138, 158640), (144, 152030), (160, 136827), (180, 121624), (184, 118980), (207, 105760), (230, 95184), (240, 91218), (276, 79320), (288, 76015), (345, 63456), (360, 60812), (368, 59490), (414, 52880), (460, 47592), (480, 45609), (552, 39660), (661, 33120), (690, 31728), (720, 30406), (736, 29745), (828, 26440), (920, 23796), (1035, 21152), (1104, 19830), (1322, 16560), (1380, 15864), (1440, 15203), (1656, 13220), (1840, 11898), (1983, 11040), (2070, 10576), (2208, 9915), (2644, 8280), (2760, 7932), (3305, 6624), (3312, 6610), (3680, 5949), (3966, 5520), (4140, 5288)]