128856879

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:281

約数の個数: 64

約数和(自身を含む): 214118400

約数和(自身を除く): 85261521

約数列:

[1, 3, 9, 19, 23, 27, 57, 67, 69, 163, 171, 201, 207, 437, 489, 513, 603, 621, 1273, 1311, 1467, 1541, 1809, 3097, 3749, 3819, 3933, 4401, 4623, 9291, 10921, 11247, 11457, 11799, 13869, 27873, 29279, 32763, 33741, 34371, 41607, 71231, 83619, 87837, 98289, 101223, 207499, 213693, 251183, 263511, 294867, 622497, 641079, 753549, 790533, 1867491, 1923237, 2260647, 4772477, 5602473, 6781941, 14317431, 42952293, 128856879]

約数ペア:

[(1, 128856879), (3, 42952293), (9, 14317431), (19, 6781941), (23, 5602473), (27, 4772477), (57, 2260647), (67, 1923237), (69, 1867491), (163, 790533), (171, 753549), (201, 641079), (207, 622497), (437, 294867), (489, 263511), (513, 251183), (603, 213693), (621, 207499), (1273, 101223), (1311, 98289), (1467, 87837), (1541, 83619), (1809, 71231), (3097, 41607), (3749, 34371), (3819, 33741), (3933, 32763), (4401, 29279), (4623, 27873), (9291, 13869), (10921, 11799), (11247, 11457)]