81140868

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{313}}^1\times {\mathrm{379}}^1$

素因数の和:721

約数の個数: 72

約数和(自身を含む): 217162400

約数和(自身を除く): 136021532

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 313, 342, 379, 626, 684, 758, 939, 1137, 1252, 1516, 1878, 2274, 2817, 3411, 3756, 4548, 5634, 5947, 6822, 7201, 11268, 11894, 13644, 14402, 17841, 21603, 23788, 28804, 35682, 43206, 53523, 64809, 71364, 86412, 107046, 118627, 129618, 214092, 237254, 259236, 355881, 474508, 711762, 1067643, 1423524, 2135286, 2253913, 4270572, 4507826, 6761739, 9015652, 13523478, 20285217, 27046956, 40570434, 81140868]

約数ペア:

[(1, 81140868), (2, 40570434), (3, 27046956), (4, 20285217), (6, 13523478), (9, 9015652), (12, 6761739), (18, 4507826), (19, 4270572), (36, 2253913), (38, 2135286), (57, 1423524), (76, 1067643), (114, 711762), (171, 474508), (228, 355881), (313, 259236), (342, 237254), (379, 214092), (626, 129618), (684, 118627), (758, 107046), (939, 86412), (1137, 71364), (1252, 64809), (1516, 53523), (1878, 43206), (2274, 35682), (2817, 28804), (3411, 23788), (3756, 21603), (4548, 17841), (5634, 14402), (5947, 13644), (6822, 11894), (7201, 11268)]