278281290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{189307}}^1$

素因数の和:189331

約数の個数: 48

約数和(自身を含む): 776920032

約数和(自身を除く): 498638742

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 189307, 378614, 567921, 946535, 1135842, 1325149, 1893070, 2650298, 2839605, 3975447, 5679210, 6625745, 7950894, 9276043, 13251490, 18552086, 19877235, 27828129, 39754470, 46380215, 55656258, 92760430, 139140645, 278281290]

約数ペア:

[(1, 278281290), (2, 139140645), (3, 92760430), (5, 55656258), (6, 46380215), (7, 39754470), (10, 27828129), (14, 19877235), (15, 18552086), (21, 13251490), (30, 9276043), (35, 7950894), (42, 6625745), (49, 5679210), (70, 3975447), (98, 2839605), (105, 2650298), (147, 1893070), (210, 1325149), (245, 1135842), (294, 946535), (490, 567921), (735, 378614), (1470, 189307)]