81915808

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{2939}}^1$

素因数の和:3029

約数の個数: 48

約数和(自身を含む): 176329440

約数和(自身を除く): 94413632

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 67, 104, 134, 208, 268, 416, 536, 871, 1072, 1742, 2144, 2939, 3484, 5878, 6968, 11756, 13936, 23512, 27872, 38207, 47024, 76414, 94048, 152828, 196913, 305656, 393826, 611312, 787652, 1222624, 1575304, 2559869, 3150608, 5119738, 6301216, 10239476, 20478952, 40957904, 81915808]

約数ペア:

[(1, 81915808), (2, 40957904), (4, 20478952), (8, 10239476), (13, 6301216), (16, 5119738), (26, 3150608), (32, 2559869), (52, 1575304), (67, 1222624), (104, 787652), (134, 611312), (208, 393826), (268, 305656), (416, 196913), (536, 152828), (871, 94048), (1072, 76414), (1742, 47024), (2144, 38207), (2939, 27872), (3484, 23512), (5878, 13936), (6968, 11756)]