145910440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{280597}}^1$

素因数の和:280621

約数の個数: 32

約数和(自身を含む): 353553480

約数和(自身を除く): 207643040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 280597, 561194, 1122388, 1402985, 2244776, 2805970, 3647761, 5611940, 7295522, 11223880, 14591044, 18238805, 29182088, 36477610, 72955220, 145910440]

約数ペア:

[(1, 145910440), (2, 72955220), (4, 36477610), (5, 29182088), (8, 18238805), (10, 14591044), (13, 11223880), (20, 7295522), (26, 5611940), (40, 3647761), (52, 2805970), (65, 2244776), (104, 1402985), (130, 1122388), (260, 561194), (520, 280597)]