128453728

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{43}}^2\times {\mathrm{167}}^1$

素因数の和:276

約数の個数: 72

約数和(自身を含む): 280497168

約数和(自身を除く): 152043440

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 86, 104, 167, 172, 208, 334, 344, 416, 559, 668, 688, 1118, 1336, 1376, 1849, 2171, 2236, 2672, 3698, 4342, 4472, 5344, 7181, 7396, 8684, 8944, 14362, 14792, 17368, 17888, 24037, 28724, 29584, 34736, 48074, 57448, 59168, 69472, 93353, 96148, 114896, 186706, 192296, 229792, 308783, 373412, 384592, 617566, 746824, 769184, 1235132, 1493648, 2470264, 2987296, 4014179, 4940528, 8028358, 9881056, 16056716, 32113432, 64226864, 128453728]

約数ペア:

[(1, 128453728), (2, 64226864), (4, 32113432), (8, 16056716), (13, 9881056), (16, 8028358), (26, 4940528), (32, 4014179), (43, 2987296), (52, 2470264), (86, 1493648), (104, 1235132), (167, 769184), (172, 746824), (208, 617566), (334, 384592), (344, 373412), (416, 308783), (559, 229792), (668, 192296), (688, 186706), (1118, 114896), (1336, 96148), (1376, 93353), (1849, 69472), (2171, 59168), (2236, 57448), (2672, 48074), (3698, 34736), (4342, 29584), (4472, 28724), (5344, 24037), (7181, 17888), (7396, 17368), (8684, 14792), (8944, 14362)]