28751440

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6781}}^1$

素因数の和:6847

約数の個数: 40

約数和(自身を含む): 68118408

約数和(自身を除く): 39366968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 6781, 13562, 27124, 33905, 54248, 67810, 108496, 135620, 271240, 359393, 542480, 718786, 1437572, 1796965, 2875144, 3593930, 5750288, 7187860, 14375720, 28751440]

約数ペア:

[(1, 28751440), (2, 14375720), (4, 7187860), (5, 5750288), (8, 3593930), (10, 2875144), (16, 1796965), (20, 1437572), (40, 718786), (53, 542480), (80, 359393), (106, 271240), (212, 135620), (265, 108496), (424, 67810), (530, 54248), (848, 33905), (1060, 27124), (2120, 13562), (4240, 6781)]