28692860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{659}}^1$

素因数の和:986

約数の個数: 48

約数和(自身を含む): 69189120

約数和(自身を除く): 40496260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 311, 622, 659, 1244, 1318, 1555, 2177, 2636, 3110, 3295, 4354, 4613, 6220, 6590, 8708, 9226, 10885, 13180, 18452, 21770, 23065, 43540, 46130, 92260, 204949, 409898, 819796, 1024745, 1434643, 2049490, 2869286, 4098980, 5738572, 7173215, 14346430, 28692860]

約数ペア:

[(1, 28692860), (2, 14346430), (4, 7173215), (5, 5738572), (7, 4098980), (10, 2869286), (14, 2049490), (20, 1434643), (28, 1024745), (35, 819796), (70, 409898), (140, 204949), (311, 92260), (622, 46130), (659, 43540), (1244, 23065), (1318, 21770), (1555, 18452), (2177, 13180), (2636, 10885), (3110, 9226), (3295, 8708), (4354, 6590), (4613, 6220)]