128897440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{401}}^1$

素因数の和:471

約数の個数: 144

約数和(自身を含む): 363782664

約数和(自身を除く): 234885224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 49, 56, 70, 80, 82, 98, 112, 140, 160, 164, 196, 205, 224, 245, 280, 287, 328, 392, 401, 410, 490, 560, 574, 656, 784, 802, 820, 980, 1120, 1148, 1312, 1435, 1568, 1604, 1640, 1960, 2005, 2009, 2296, 2807, 2870, 3208, 3280, 3920, 4010, 4018, 4592, 5614, 5740, 6416, 6560, 7840, 8020, 8036, 9184, 10045, 11228, 11480, 12832, 14035, 16040, 16072, 16441, 19649, 20090, 22456, 22960, 28070, 32080, 32144, 32882, 39298, 40180, 44912, 45920, 56140, 64160, 64288, 65764, 78596, 80360, 82205, 89824, 98245, 112280, 115087, 131528, 157192, 160720, 164410, 196490, 224560, 230174, 263056, 314384, 321440, 328820, 392980, 449120, 460348, 526112, 575435, 628768, 657640, 785960, 805609, 920696, 1150870, 1315280, 1571920, 1611218, 1841392, 2301740, 2630560, 3143840, 3222436, 3682784, 4028045, 4603480, 6444872, 8056090, 9206960, 12889744, 16112180, 18413920, 25779488, 32224360, 64448720, 128897440]

約数ペア:

[(1, 128897440), (2, 64448720), (4, 32224360), (5, 25779488), (7, 18413920), (8, 16112180), (10, 12889744), (14, 9206960), (16, 8056090), (20, 6444872), (28, 4603480), (32, 4028045), (35, 3682784), (40, 3222436), (41, 3143840), (49, 2630560), (56, 2301740), (70, 1841392), (80, 1611218), (82, 1571920), (98, 1315280), (112, 1150870), (140, 920696), (160, 805609), (164, 785960), (196, 657640), (205, 628768), (224, 575435), (245, 526112), (280, 460348), (287, 449120), (328, 392980), (392, 328820), (401, 321440), (410, 314384), (490, 263056), (560, 230174), (574, 224560), (656, 196490), (784, 164410), (802, 160720), (820, 157192), (980, 131528), (1120, 115087), (1148, 112280), (1312, 98245), (1435, 89824), (1568, 82205), (1604, 80360), (1640, 78596), (1960, 65764), (2005, 64288), (2009, 64160), (2296, 56140), (2807, 45920), (2870, 44912), (3208, 40180), (3280, 39298), (3920, 32882), (4010, 32144), (4018, 32080), (4592, 28070), (5614, 22960), (5740, 22456), (6416, 20090), (6560, 19649), (7840, 16441), (8020, 16072), (8036, 16040), (9184, 14035), (10045, 12832), (11228, 11480)]