289742440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{557197}}^1$

素因数の和:557221

約数の個数: 32

約数和(自身を含む): 702069480

約数和(自身を除く): 412327040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 557197, 1114394, 2228788, 2785985, 4457576, 5571970, 7243561, 11143940, 14487122, 22287880, 28974244, 36217805, 57948488, 72435610, 144871220, 289742440]

約数ペア:

[(1, 289742440), (2, 144871220), (4, 72435610), (5, 57948488), (8, 36217805), (10, 28974244), (13, 22287880), (20, 14487122), (26, 11143940), (40, 7243561), (52, 5571970), (65, 4457576), (104, 2785985), (130, 2228788), (260, 1114394), (520, 557197)]