1998065860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1\times {\mathrm{773}}^1$

素因数の和:1325

約数の個数: 96

約数和(自身を含む): 4941216000

約数和(自身を除く): 2943150140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 499, 518, 740, 773, 998, 1036, 1295, 1546, 1996, 2495, 2590, 3092, 3493, 3865, 4990, 5180, 5411, 6986, 7730, 9980, 10822, 13972, 15460, 17465, 18463, 21644, 27055, 28601, 34930, 36926, 54110, 57202, 69860, 73852, 92315, 108220, 114404, 129241, 143005, 184630, 200207, 258482, 286010, 369260, 385727, 400414, 516964, 572020, 646205, 771454, 800828, 1001035, 1292410, 1542908, 1928635, 2002070, 2584820, 2700089, 3857270, 4004140, 5400178, 7714540, 10800356, 13500445, 14271899, 27000890, 28543798, 54001780, 57087596, 71359495, 99903293, 142718990, 199806586, 285437980, 399613172, 499516465, 999032930, 1998065860]

約数ペア:

[(1, 1998065860), (2, 999032930), (4, 499516465), (5, 399613172), (7, 285437980), (10, 199806586), (14, 142718990), (20, 99903293), (28, 71359495), (35, 57087596), (37, 54001780), (70, 28543798), (74, 27000890), (140, 14271899), (148, 13500445), (185, 10800356), (259, 7714540), (370, 5400178), (499, 4004140), (518, 3857270), (740, 2700089), (773, 2584820), (998, 2002070), (1036, 1928635), (1295, 1542908), (1546, 1292410), (1996, 1001035), (2495, 800828), (2590, 771454), (3092, 646205), (3493, 572020), (3865, 516964), (4990, 400414), (5180, 385727), (5411, 369260), (6986, 286010), (7730, 258482), (9980, 200207), (10822, 184630), (13972, 143005), (15460, 129241), (17465, 114404), (18463, 108220), (21644, 92315), (27055, 73852), (28601, 69860), (34930, 57202), (36926, 54110)]