179409860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1993}}^1$

素因数の和:2652

約数の個数: 48

約数和(自身を含む): 431469696

約数和(自身を除く): 252059836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 1286, 1993, 2572, 3215, 3986, 4501, 6430, 7972, 9002, 9965, 12860, 13951, 18004, 19930, 22505, 27902, 39860, 45010, 55804, 69755, 90020, 139510, 279020, 1281499, 2562998, 5125996, 6407495, 8970493, 12814990, 17940986, 25629980, 35881972, 44852465, 89704930, 179409860]

約数ペア:

[(1, 179409860), (2, 89704930), (4, 44852465), (5, 35881972), (7, 25629980), (10, 17940986), (14, 12814990), (20, 8970493), (28, 6407495), (35, 5125996), (70, 2562998), (140, 1281499), (643, 279020), (1286, 139510), (1993, 90020), (2572, 69755), (3215, 55804), (3986, 45010), (4501, 39860), (6430, 27902), (7972, 22505), (9002, 19930), (9965, 18004), (12860, 13951)]