256045440

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{19051}}^1$

素因数の和:19080

約数の個数: 128

約数和(自身を含む): 932785920

約数和(自身を除く): 676740480

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, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1680, 1920, 2240, 2688, 3360, 4480, 6720, 13440, 19051, 38102, 57153, 76204, 95255, 114306, 133357, 152408, 190510, 228612, 266714, 285765, 304816, 381020, 400071, 457224, 533428, 571530, 609632, 666785, 762040, 800142, 914448, 1066856, 1143060, 1219264, 1333570, 1524080, 1600284, 1828896, 2000355, 2133712, 2286120, 2438528, 2667140, 3048160, 3200568, 3657792, 4000710, 4267424, 4572240, 5334280, 6096320, 6401136, 7315584, 8001420, 8534848, 9144480, 10668560, 12192640, 12802272, 16002840, 17069696, 18288960, 21337120, 25604544, 32005680, 36577920, 42674240, 51209088, 64011360, 85348480, 128022720, 256045440]

約数ペア:

[(1, 256045440), (2, 128022720), (3, 85348480), (4, 64011360), (5, 51209088), (6, 42674240), (7, 36577920), (8, 32005680), (10, 25604544), (12, 21337120), (14, 18288960), (15, 17069696), (16, 16002840), (20, 12802272), (21, 12192640), (24, 10668560), (28, 9144480), (30, 8534848), (32, 8001420), (35, 7315584), (40, 6401136), (42, 6096320), (48, 5334280), (56, 4572240), (60, 4267424), (64, 4000710), (70, 3657792), (80, 3200568), (84, 3048160), (96, 2667140), (105, 2438528), (112, 2286120), (120, 2133712), (128, 2000355), (140, 1828896), (160, 1600284), (168, 1524080), (192, 1333570), (210, 1219264), (224, 1143060), (240, 1066856), (280, 914448), (320, 800142), (336, 762040), (384, 666785), (420, 609632), (448, 571530), (480, 533428), (560, 457224), (640, 400071), (672, 381020), (840, 304816), (896, 285765), (960, 266714), (1120, 228612), (1344, 190510), (1680, 152408), (1920, 133357), (2240, 114306), (2688, 95255), (3360, 76204), (4480, 57153), (6720, 38102), (13440, 19051)]