81261600

素因数分解:

$2^5\times 3^1\times 5^2\times 7^2\times {\mathrm{691}}^1$

素因数の和:728

約数の個数: 216

約数和(自身を含む): 308136528

約数和(自身を除く): 226874928

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 32, 35, 40, 42, 48, 49, 50, 56, 60, 70, 75, 80, 84, 96, 98, 100, 105, 112, 120, 140, 147, 150, 160, 168, 175, 196, 200, 210, 224, 240, 245, 280, 294, 300, 336, 350, 392, 400, 420, 480, 490, 525, 560, 588, 600, 672, 691, 700, 735, 784, 800, 840, 980, 1050, 1120, 1176, 1200, 1225, 1382, 1400, 1470, 1568, 1680, 1960, 2073, 2100, 2352, 2400, 2450, 2764, 2800, 2940, 3360, 3455, 3675, 3920, 4146, 4200, 4704, 4837, 4900, 5528, 5600, 5880, 6910, 7350, 7840, 8292, 8400, 9674, 9800, 10365, 11056, 11760, 13820, 14511, 14700, 16584, 16800, 17275, 19348, 19600, 20730, 22112, 23520, 24185, 27640, 29022, 29400, 33168, 33859, 34550, 38696, 39200, 41460, 48370, 51825, 55280, 58044, 58800, 66336, 67718, 69100, 72555, 77392, 82920, 96740, 101577, 103650, 110560, 116088, 117600, 120925, 135436, 138200, 145110, 154784, 165840, 169295, 193480, 203154, 207300, 232176, 241850, 270872, 276400, 290220, 331680, 338590, 362775, 386960, 406308, 414600, 464352, 483700, 507885, 541744, 552800, 580440, 677180, 725550, 773920, 812616, 829200, 846475, 967400, 1015770, 1083488, 1160880, 1354360, 1451100, 1625232, 1658400, 1692950, 1934800, 2031540, 2321760, 2539425, 2708720, 2902200, 3250464, 3385900, 3869600, 4063080, 5078850, 5417440, 5804400, 6771800, 8126160, 10157700, 11608800, 13543600, 16252320, 20315400, 27087200, 40630800, 81261600]

約数ペア:

[(1, 81261600), (2, 40630800), (3, 27087200), (4, 20315400), (5, 16252320), (6, 13543600), (7, 11608800), (8, 10157700), (10, 8126160), (12, 6771800), (14, 5804400), (15, 5417440), (16, 5078850), (20, 4063080), (21, 3869600), (24, 3385900), (25, 3250464), (28, 2902200), (30, 2708720), (32, 2539425), (35, 2321760), (40, 2031540), (42, 1934800), (48, 1692950), (49, 1658400), (50, 1625232), (56, 1451100), (60, 1354360), (70, 1160880), (75, 1083488), (80, 1015770), (84, 967400), (96, 846475), (98, 829200), (100, 812616), (105, 773920), (112, 725550), (120, 677180), (140, 580440), (147, 552800), (150, 541744), (160, 507885), (168, 483700), (175, 464352), (196, 414600), (200, 406308), (210, 386960), (224, 362775), (240, 338590), (245, 331680), (280, 290220), (294, 276400), (300, 270872), (336, 241850), (350, 232176), (392, 207300), (400, 203154), (420, 193480), (480, 169295), (490, 165840), (525, 154784), (560, 145110), (588, 138200), (600, 135436), (672, 120925), (691, 117600), (700, 116088), (735, 110560), (784, 103650), (800, 101577), (840, 96740), (980, 82920), (1050, 77392), (1120, 72555), (1176, 69100), (1200, 67718), (1225, 66336), (1382, 58800), (1400, 58044), (1470, 55280), (1568, 51825), (1680, 48370), (1960, 41460), (2073, 39200), (2100, 38696), (2352, 34550), (2400, 33859), (2450, 33168), (2764, 29400), (2800, 29022), (2940, 27640), (3360, 24185), (3455, 23520), (3675, 22112), (3920, 20730), (4146, 19600), (4200, 19348), (4704, 17275), (4837, 16800), (4900, 16584), (5528, 14700), (5600, 14511), (5880, 13820), (6910, 11760), (7350, 11056), (7840, 10365), (8292, 9800), (8400, 9674)]