90778504

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{43}}^2$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 194732910

約数和(自身を除く): 103954406

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 43, 68, 76, 86, 136, 152, 172, 323, 344, 361, 646, 722, 731, 817, 1292, 1444, 1462, 1634, 1849, 2584, 2888, 2924, 3268, 3698, 5848, 6137, 6536, 7396, 12274, 13889, 14792, 15523, 24548, 27778, 31046, 31433, 35131, 49096, 55556, 62092, 62866, 70262, 111112, 124184, 125732, 140524, 251464, 263891, 281048, 527782, 597227, 667489, 1055564, 1194454, 1334978, 2111128, 2388908, 2669956, 4777816, 5339912, 11347313, 22694626, 45389252, 90778504]

約数ペア:

[(1, 90778504), (2, 45389252), (4, 22694626), (8, 11347313), (17, 5339912), (19, 4777816), (34, 2669956), (38, 2388908), (43, 2111128), (68, 1334978), (76, 1194454), (86, 1055564), (136, 667489), (152, 597227), (172, 527782), (323, 281048), (344, 263891), (361, 251464), (646, 140524), (722, 125732), (731, 124184), (817, 111112), (1292, 70262), (1444, 62866), (1462, 62092), (1634, 55556), (1849, 49096), (2584, 35131), (2888, 31433), (2924, 31046), (3268, 27778), (3698, 24548), (5848, 15523), (6137, 14792), (6536, 13889), (7396, 12274)]