254850440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{490097}}^1$

素因数の和:490121

約数の個数: 32

約数和(自身を含む): 617523480

約数和(自身を除く): 362673040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 490097, 980194, 1960388, 2450485, 3920776, 4900970, 6371261, 9801940, 12742522, 19603880, 25485044, 31856305, 50970088, 63712610, 127425220, 254850440]

約数ペア:

[(1, 254850440), (2, 127425220), (4, 63712610), (5, 50970088), (8, 31856305), (10, 25485044), (13, 19603880), (20, 12742522), (26, 9801940), (40, 6371261), (52, 4900970), (65, 3920776), (104, 2450485), (130, 1960388), (260, 980194), (520, 490097)]