145435280

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{5209}}^1$

素因数の和:5571

約数の個数: 40

約数和(自身を含む): 339171000

約数和(自身を除く): 193735720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 698, 1396, 1745, 2792, 3490, 5209, 5584, 6980, 10418, 13960, 20836, 26045, 27920, 41672, 52090, 83344, 104180, 208360, 416720, 1817941, 3635882, 7271764, 9089705, 14543528, 18179410, 29087056, 36358820, 72717640, 145435280]

約数ペア:

[(1, 145435280), (2, 72717640), (4, 36358820), (5, 29087056), (8, 18179410), (10, 14543528), (16, 9089705), (20, 7271764), (40, 3635882), (80, 1817941), (349, 416720), (698, 208360), (1396, 104180), (1745, 83344), (2792, 52090), (3490, 41672), (5209, 27920), (5584, 26045), (6980, 20836), (10418, 13960)]