81204928

素因数分解:

$2^6\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4421}}^1$

素因数の和:4481

約数の個数: 56

約数和(自身を含む): 188695584

約数和(自身を除く): 107490656

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 64, 82, 112, 164, 224, 287, 328, 448, 574, 656, 1148, 1312, 2296, 2624, 4421, 4592, 8842, 9184, 17684, 18368, 30947, 35368, 61894, 70736, 123788, 141472, 181261, 247576, 282944, 362522, 495152, 725044, 990304, 1268827, 1450088, 1980608, 2537654, 2900176, 5075308, 5800352, 10150616, 11600704, 20301232, 40602464, 81204928]

約数ペア:

[(1, 81204928), (2, 40602464), (4, 20301232), (7, 11600704), (8, 10150616), (14, 5800352), (16, 5075308), (28, 2900176), (32, 2537654), (41, 1980608), (56, 1450088), (64, 1268827), (82, 990304), (112, 725044), (164, 495152), (224, 362522), (287, 282944), (328, 247576), (448, 181261), (574, 141472), (656, 123788), (1148, 70736), (1312, 61894), (2296, 35368), (2624, 30947), (4421, 18368), (4592, 17684), (8842, 9184)]