1440215840

素因数分解:

$2^5\times 5^1\times 7^4\times {\mathrm{23}}^1\times {\mathrm{163}}^1$

素因数の和:229

約数の個数: 240

約数和(自身を含む): 4167350208

約数和(自身を除く): 2727134368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 70, 80, 92, 98, 112, 115, 140, 160, 161, 163, 184, 196, 224, 230, 245, 280, 322, 326, 343, 368, 392, 460, 490, 560, 644, 652, 686, 736, 784, 805, 815, 920, 980, 1120, 1127, 1141, 1288, 1304, 1372, 1568, 1610, 1630, 1715, 1840, 1960, 2254, 2282, 2401, 2576, 2608, 2744, 3220, 3260, 3430, 3680, 3749, 3920, 4508, 4564, 4802, 5152, 5216, 5488, 5635, 5705, 6440, 6520, 6860, 7498, 7840, 7889, 7987, 9016, 9128, 9604, 10976, 11270, 11410, 12005, 12880, 13040, 13720, 14996, 15778, 15974, 18032, 18256, 18745, 19208, 22540, 22820, 24010, 25760, 26080, 26243, 27440, 29992, 31556, 31948, 36064, 36512, 37490, 38416, 39445, 39935, 45080, 45640, 48020, 52486, 54880, 55223, 55909, 59984, 63112, 63896, 74980, 76832, 78890, 79870, 90160, 91280, 96040, 104972, 110446, 111818, 119968, 126224, 127792, 131215, 149960, 157780, 159740, 180320, 182560, 183701, 192080, 209944, 220892, 223636, 252448, 255584, 262430, 276115, 279545, 299920, 315560, 319480, 367402, 384160, 391363, 419888, 441784, 447272, 524860, 552230, 559090, 599840, 631120, 638960, 734804, 782726, 839776, 883568, 894544, 918505, 1049720, 1104460, 1118180, 1262240, 1277920, 1285907, 1469608, 1565452, 1767136, 1789088, 1837010, 1956815, 2099440, 2208920, 2236360, 2571814, 2939216, 3130904, 3674020, 3913630, 4198880, 4417840, 4472720, 5143628, 5878432, 6261808, 6429535, 7348040, 7827260, 8835680, 8945440, 9001349, 10287256, 12523616, 12859070, 14696080, 15654520, 18002698, 20574512, 25718140, 29392160, 31309040, 36005396, 41149024, 45006745, 51436280, 62618080, 72010792, 90013490, 102872560, 144021584, 180026980, 205745120, 288043168, 360053960, 720107920, 1440215840]

約数ペア:

[(1, 1440215840), (2, 720107920), (4, 360053960), (5, 288043168), (7, 205745120), (8, 180026980), (10, 144021584), (14, 102872560), (16, 90013490), (20, 72010792), (23, 62618080), (28, 51436280), (32, 45006745), (35, 41149024), (40, 36005396), (46, 31309040), (49, 29392160), (56, 25718140), (70, 20574512), (80, 18002698), (92, 15654520), (98, 14696080), (112, 12859070), (115, 12523616), (140, 10287256), (160, 9001349), (161, 8945440), (163, 8835680), (184, 7827260), (196, 7348040), (224, 6429535), (230, 6261808), (245, 5878432), (280, 5143628), (322, 4472720), (326, 4417840), (343, 4198880), (368, 3913630), (392, 3674020), (460, 3130904), (490, 2939216), (560, 2571814), (644, 2236360), (652, 2208920), (686, 2099440), (736, 1956815), (784, 1837010), (805, 1789088), (815, 1767136), (920, 1565452), (980, 1469608), (1120, 1285907), (1127, 1277920), (1141, 1262240), (1288, 1118180), (1304, 1104460), (1372, 1049720), (1568, 918505), (1610, 894544), (1630, 883568), (1715, 839776), (1840, 782726), (1960, 734804), (2254, 638960), (2282, 631120), (2401, 599840), (2576, 559090), (2608, 552230), (2744, 524860), (3220, 447272), (3260, 441784), (3430, 419888), (3680, 391363), (3749, 384160), (3920, 367402), (4508, 319480), (4564, 315560), (4802, 299920), (5152, 279545), (5216, 276115), (5488, 262430), (5635, 255584), (5705, 252448), (6440, 223636), (6520, 220892), (6860, 209944), (7498, 192080), (7840, 183701), (7889, 182560), (7987, 180320), (9016, 159740), (9128, 157780), (9604, 149960), (10976, 131215), (11270, 127792), (11410, 126224), (12005, 119968), (12880, 111818), (13040, 110446), (13720, 104972), (14996, 96040), (15778, 91280), (15974, 90160), (18032, 79870), (18256, 78890), (18745, 76832), (19208, 74980), (22540, 63896), (22820, 63112), (24010, 59984), (25760, 55909), (26080, 55223), (26243, 54880), (27440, 52486), (29992, 48020), (31556, 45640), (31948, 45080), (36064, 39935), (36512, 39445), (37490, 38416)]