18305872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 41997312

約数和(自身を除く): 23691440

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 31, 34, 52, 62, 68, 104, 124, 136, 167, 208, 221, 248, 272, 334, 403, 442, 496, 527, 668, 806, 884, 1054, 1336, 1612, 1768, 2108, 2171, 2672, 2839, 3224, 3536, 4216, 4342, 5177, 5678, 6448, 6851, 8432, 8684, 10354, 11356, 13702, 17368, 20708, 22712, 27404, 34736, 36907, 41416, 45424, 54808, 67301, 73814, 82832, 88009, 109616, 134602, 147628, 176018, 269204, 295256, 352036, 538408, 590512, 704072, 1076816, 1144117, 1408144, 2288234, 4576468, 9152936, 18305872]

約数ペア:

[(1, 18305872), (2, 9152936), (4, 4576468), (8, 2288234), (13, 1408144), (16, 1144117), (17, 1076816), (26, 704072), (31, 590512), (34, 538408), (52, 352036), (62, 295256), (68, 269204), (104, 176018), (124, 147628), (136, 134602), (167, 109616), (208, 88009), (221, 82832), (248, 73814), (272, 67301), (334, 54808), (403, 45424), (442, 41416), (496, 36907), (527, 34736), (668, 27404), (806, 22712), (884, 20708), (1054, 17368), (1336, 13702), (1612, 11356), (1768, 10354), (2108, 8684), (2171, 8432), (2672, 6851), (2839, 6448), (3224, 5678), (3536, 5177), (4216, 4342)]