20046064

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:158

約数の個数: 80

約数和(自身を含む): 44282880

約数和(自身を除く): 24236816

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 47, 61, 76, 92, 94, 122, 152, 184, 188, 244, 304, 368, 376, 437, 488, 752, 874, 893, 976, 1081, 1159, 1403, 1748, 1786, 2162, 2318, 2806, 2867, 3496, 3572, 4324, 4636, 5612, 5734, 6992, 7144, 8648, 9272, 11224, 11468, 14288, 17296, 18544, 20539, 22448, 22936, 26657, 41078, 45872, 53314, 54473, 65941, 82156, 106628, 108946, 131882, 164312, 213256, 217892, 263764, 328624, 426512, 435784, 527528, 871568, 1055056, 1252879, 2505758, 5011516, 10023032, 20046064]

約数ペア:

[(1, 20046064), (2, 10023032), (4, 5011516), (8, 2505758), (16, 1252879), (19, 1055056), (23, 871568), (38, 527528), (46, 435784), (47, 426512), (61, 328624), (76, 263764), (92, 217892), (94, 213256), (122, 164312), (152, 131882), (184, 108946), (188, 106628), (244, 82156), (304, 65941), (368, 54473), (376, 53314), (437, 45872), (488, 41078), (752, 26657), (874, 22936), (893, 22448), (976, 20539), (1081, 18544), (1159, 17296), (1403, 14288), (1748, 11468), (1786, 11224), (2162, 9272), (2318, 8648), (2806, 7144), (2867, 6992), (3496, 5734), (3572, 5612), (4324, 4636)]