281777440

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{283}}^1$

素因数の和:439

約数の個数: 144

約数和(自身を含む): 783240192

約数和(自身を除く): 501462752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 127, 140, 160, 196, 224, 245, 254, 280, 283, 392, 490, 508, 560, 566, 635, 784, 889, 980, 1016, 1120, 1132, 1270, 1415, 1568, 1778, 1960, 1981, 2032, 2264, 2540, 2830, 3556, 3920, 3962, 4064, 4445, 4528, 5080, 5660, 6223, 7112, 7840, 7924, 8890, 9056, 9905, 10160, 11320, 12446, 13867, 14224, 15848, 17780, 19810, 20320, 22640, 24892, 27734, 28448, 31115, 31696, 35560, 35941, 39620, 45280, 49784, 55468, 62230, 63392, 69335, 71120, 71882, 79240, 99568, 110936, 124460, 138670, 142240, 143764, 158480, 179705, 199136, 221872, 248920, 251587, 277340, 287528, 316960, 359410, 443744, 497840, 503174, 554680, 575056, 718820, 995680, 1006348, 1109360, 1150112, 1257935, 1437640, 1761109, 2012696, 2218720, 2515870, 2875280, 3522218, 4025392, 5031740, 5750560, 7044436, 8050784, 8805545, 10063480, 14088872, 17611090, 20126960, 28177744, 35222180, 40253920, 56355488, 70444360, 140888720, 281777440]

約数ペア:

[(1, 281777440), (2, 140888720), (4, 70444360), (5, 56355488), (7, 40253920), (8, 35222180), (10, 28177744), (14, 20126960), (16, 17611090), (20, 14088872), (28, 10063480), (32, 8805545), (35, 8050784), (40, 7044436), (49, 5750560), (56, 5031740), (70, 4025392), (80, 3522218), (98, 2875280), (112, 2515870), (127, 2218720), (140, 2012696), (160, 1761109), (196, 1437640), (224, 1257935), (245, 1150112), (254, 1109360), (280, 1006348), (283, 995680), (392, 718820), (490, 575056), (508, 554680), (560, 503174), (566, 497840), (635, 443744), (784, 359410), (889, 316960), (980, 287528), (1016, 277340), (1120, 251587), (1132, 248920), (1270, 221872), (1415, 199136), (1568, 179705), (1778, 158480), (1960, 143764), (1981, 142240), (2032, 138670), (2264, 124460), (2540, 110936), (2830, 99568), (3556, 79240), (3920, 71882), (3962, 71120), (4064, 69335), (4445, 63392), (4528, 62230), (5080, 55468), (5660, 49784), (6223, 45280), (7112, 39620), (7840, 35941), (7924, 35560), (8890, 31696), (9056, 31115), (9905, 28448), (10160, 27734), (11320, 24892), (12446, 22640), (13867, 20320), (14224, 19810), (15848, 17780)]