81170880

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:331

約数の個数: 224

約数和(自身を含む): 301971456

約数和(自身を除く): 220800576

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 47, 48, 56, 60, 64, 70, 80, 84, 94, 96, 105, 112, 120, 140, 141, 160, 168, 188, 192, 210, 224, 235, 240, 257, 280, 282, 320, 329, 336, 376, 420, 448, 470, 480, 514, 560, 564, 658, 672, 705, 752, 771, 840, 940, 960, 987, 1028, 1120, 1128, 1285, 1316, 1344, 1410, 1504, 1542, 1645, 1680, 1799, 1880, 1974, 2056, 2240, 2256, 2570, 2632, 2820, 3008, 3084, 3290, 3360, 3598, 3760, 3855, 3948, 4112, 4512, 4935, 5140, 5264, 5397, 5640, 6168, 6580, 6720, 7196, 7520, 7710, 7896, 8224, 8995, 9024, 9870, 10280, 10528, 10794, 11280, 12079, 12336, 13160, 14392, 15040, 15420, 15792, 16448, 17990, 19740, 20560, 21056, 21588, 22560, 24158, 24672, 26320, 26985, 28784, 30840, 31584, 35980, 36237, 39480, 41120, 43176, 45120, 48316, 49344, 52640, 53970, 57568, 60395, 61680, 63168, 71960, 72474, 78960, 82240, 84553, 86352, 96632, 105280, 107940, 115136, 120790, 123360, 143920, 144948, 157920, 169106, 172704, 181185, 193264, 215880, 241580, 246720, 253659, 287840, 289896, 315840, 338212, 345408, 362370, 386528, 422765, 431760, 483160, 507318, 575680, 579792, 676424, 724740, 773056, 845530, 863520, 966320, 1014636, 1159584, 1268295, 1352848, 1449480, 1691060, 1727040, 1932640, 2029272, 2319168, 2536590, 2705696, 2898960, 3382120, 3865280, 4058544, 5073180, 5411392, 5797920, 6764240, 8117088, 10146360, 11595840, 13528480, 16234176, 20292720, 27056960, 40585440, 81170880]

約数ペア:

[(1, 81170880), (2, 40585440), (3, 27056960), (4, 20292720), (5, 16234176), (6, 13528480), (7, 11595840), (8, 10146360), (10, 8117088), (12, 6764240), (14, 5797920), (15, 5411392), (16, 5073180), (20, 4058544), (21, 3865280), (24, 3382120), (28, 2898960), (30, 2705696), (32, 2536590), (35, 2319168), (40, 2029272), (42, 1932640), (47, 1727040), (48, 1691060), (56, 1449480), (60, 1352848), (64, 1268295), (70, 1159584), (80, 1014636), (84, 966320), (94, 863520), (96, 845530), (105, 773056), (112, 724740), (120, 676424), (140, 579792), (141, 575680), (160, 507318), (168, 483160), (188, 431760), (192, 422765), (210, 386528), (224, 362370), (235, 345408), (240, 338212), (257, 315840), (280, 289896), (282, 287840), (320, 253659), (329, 246720), (336, 241580), (376, 215880), (420, 193264), (448, 181185), (470, 172704), (480, 169106), (514, 157920), (560, 144948), (564, 143920), (658, 123360), (672, 120790), (705, 115136), (752, 107940), (771, 105280), (840, 96632), (940, 86352), (960, 84553), (987, 82240), (1028, 78960), (1120, 72474), (1128, 71960), (1285, 63168), (1316, 61680), (1344, 60395), (1410, 57568), (1504, 53970), (1542, 52640), (1645, 49344), (1680, 48316), (1799, 45120), (1880, 43176), (1974, 41120), (2056, 39480), (2240, 36237), (2256, 35980), (2570, 31584), (2632, 30840), (2820, 28784), (3008, 26985), (3084, 26320), (3290, 24672), (3360, 24158), (3598, 22560), (3760, 21588), (3855, 21056), (3948, 20560), (4112, 19740), (4512, 17990), (4935, 16448), (5140, 15792), (5264, 15420), (5397, 15040), (5640, 14392), (6168, 13160), (6580, 12336), (6720, 12079), (7196, 11280), (7520, 10794), (7710, 10528), (7896, 10280), (8224, 9870), (8995, 9024)]