520128021

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{569}}^1$

素因数の和:706

約数の個数: 64

約数和(自身を含む): 875520000

約数和(自身を除く): 355391979

約数列:

[1, 3, 7, 19, 21, 29, 57, 79, 87, 133, 203, 237, 399, 551, 553, 569, 609, 1501, 1653, 1659, 1707, 2291, 3857, 3983, 4503, 6873, 10507, 10811, 11571, 11949, 16037, 16501, 31521, 32433, 43529, 44951, 48111, 49503, 75677, 115507, 130587, 134853, 227031, 304703, 313519, 314657, 346521, 854069, 914109, 940557, 943971, 1303579, 2194633, 2562207, 3910737, 5978483, 6583899, 9125053, 17935449, 24768001, 27375159, 74304003, 173376007, 520128021]

約数ペア:

[(1, 520128021), (3, 173376007), (7, 74304003), (19, 27375159), (21, 24768001), (29, 17935449), (57, 9125053), (79, 6583899), (87, 5978483), (133, 3910737), (203, 2562207), (237, 2194633), (399, 1303579), (551, 943971), (553, 940557), (569, 914109), (609, 854069), (1501, 346521), (1653, 314657), (1659, 313519), (1707, 304703), (2291, 227031), (3857, 134853), (3983, 130587), (4503, 115507), (6873, 75677), (10507, 49503), (10811, 48111), (11571, 44951), (11949, 43529), (16037, 32433), (16501, 31521)]