145754440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{280297}}^1$

素因数の和:280321

約数の個数: 32

約数和(自身を含む): 353175480

約数和(自身を除く): 207421040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 280297, 560594, 1121188, 1401485, 2242376, 2802970, 3643861, 5605940, 7287722, 11211880, 14575444, 18219305, 29150888, 36438610, 72877220, 145754440]

約数ペア:

[(1, 145754440), (2, 72877220), (4, 36438610), (5, 29150888), (8, 18219305), (10, 14575444), (13, 11211880), (20, 7287722), (26, 5605940), (40, 3643861), (52, 2802970), (65, 2242376), (104, 1401485), (130, 1121188), (260, 560594), (520, 280297)]