1287767816

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{293}}^1\times {\mathrm{1901}}^1$

素因数の和:2234

約数の個数: 48

約数和(自身を含む): 2575060740

約数和(自身を除く): 1287292924

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 289, 293, 578, 586, 1156, 1172, 1901, 2312, 2344, 3802, 4981, 7604, 9962, 15208, 19924, 32317, 39848, 64634, 84677, 129268, 169354, 258536, 338708, 549389, 556993, 677416, 1098778, 1113986, 2197556, 2227972, 4395112, 4455944, 9468881, 18937762, 37875524, 75751048, 160970977, 321941954, 643883908, 1287767816]

約数ペア:

[(1, 1287767816), (2, 643883908), (4, 321941954), (8, 160970977), (17, 75751048), (34, 37875524), (68, 18937762), (136, 9468881), (289, 4455944), (293, 4395112), (578, 2227972), (586, 2197556), (1156, 1113986), (1172, 1098778), (1901, 677416), (2312, 556993), (2344, 549389), (3802, 338708), (4981, 258536), (7604, 169354), (9962, 129268), (15208, 84677), (19924, 64634), (32317, 39848)]