980159440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{72497}}^1$

素因数の和:72536

約数の個数: 60

約数和(自身を含む): 2467686924

約数和(自身を除く): 1487527484

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 208, 260, 338, 520, 676, 845, 1040, 1352, 1690, 2704, 3380, 6760, 13520, 72497, 144994, 289988, 362485, 579976, 724970, 942461, 1159952, 1449940, 1884922, 2899880, 3769844, 4712305, 5799760, 7539688, 9424610, 12251993, 15079376, 18849220, 24503986, 37698440, 49007972, 61259965, 75396880, 98015944, 122519930, 196031888, 245039860, 490079720, 980159440]

約数ペア:

[(1, 980159440), (2, 490079720), (4, 245039860), (5, 196031888), (8, 122519930), (10, 98015944), (13, 75396880), (16, 61259965), (20, 49007972), (26, 37698440), (40, 24503986), (52, 18849220), (65, 15079376), (80, 12251993), (104, 9424610), (130, 7539688), (169, 5799760), (208, 4712305), (260, 3769844), (338, 2899880), (520, 1884922), (676, 1449940), (845, 1159952), (1040, 942461), (1352, 724970), (1690, 579976), (2704, 362485), (3380, 289988), (6760, 144994), (13520, 72497)]