179999960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{5689}}^1$

素因数の和:5820

約数の個数: 64

約数和(自身を含む): 467035200

約数和(自身を除く): 287035240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 452, 565, 791, 904, 1130, 1582, 2260, 3164, 3955, 4520, 5689, 6328, 7910, 11378, 15820, 22756, 28445, 31640, 39823, 45512, 56890, 79646, 113780, 159292, 199115, 227560, 318584, 398230, 642857, 796460, 1285714, 1592920, 2571428, 3214285, 4499999, 5142856, 6428570, 8999998, 12857140, 17999996, 22499995, 25714280, 35999992, 44999990, 89999980, 179999960]

約数ペア:

[(1, 179999960), (2, 89999980), (4, 44999990), (5, 35999992), (7, 25714280), (8, 22499995), (10, 17999996), (14, 12857140), (20, 8999998), (28, 6428570), (35, 5142856), (40, 4499999), (56, 3214285), (70, 2571428), (113, 1592920), (140, 1285714), (226, 796460), (280, 642857), (452, 398230), (565, 318584), (791, 227560), (904, 199115), (1130, 159292), (1582, 113780), (2260, 79646), (3164, 56890), (3955, 45512), (4520, 39823), (5689, 31640), (6328, 28445), (7910, 22756), (11378, 15820)]