81964288

素因数分解:

$2^8\times 7^1\times {\mathrm{53}}^1\times {\mathrm{863}}^1$

素因数の和:939

約数の個数: 72

約数和(自身を含む): 190729728

約数和(自身を除く): 108765440

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 256, 371, 424, 448, 742, 848, 863, 896, 1484, 1696, 1726, 1792, 2968, 3392, 3452, 5936, 6041, 6784, 6904, 11872, 12082, 13568, 13808, 23744, 24164, 27616, 45739, 47488, 48328, 55232, 91478, 94976, 96656, 110464, 182956, 193312, 220928, 320173, 365912, 386624, 640346, 731824, 773248, 1280692, 1463648, 1546496, 2561384, 2927296, 5122768, 5854592, 10245536, 11709184, 20491072, 40982144, 81964288]

約数ペア:

[(1, 81964288), (2, 40982144), (4, 20491072), (7, 11709184), (8, 10245536), (14, 5854592), (16, 5122768), (28, 2927296), (32, 2561384), (53, 1546496), (56, 1463648), (64, 1280692), (106, 773248), (112, 731824), (128, 640346), (212, 386624), (224, 365912), (256, 320173), (371, 220928), (424, 193312), (448, 182956), (742, 110464), (848, 96656), (863, 94976), (896, 91478), (1484, 55232), (1696, 48328), (1726, 47488), (1792, 45739), (2968, 27616), (3392, 24164), (3452, 23744), (5936, 13808), (6041, 13568), (6784, 12082), (6904, 11872)]