664116440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1277147}}^1$

素因数の和:1277171

約数の個数: 32

約数和(自身を含む): 1609206480

約数和(自身を除く): 945090040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1277147, 2554294, 5108588, 6385735, 10217176, 12771470, 16602911, 25542940, 33205822, 51085880, 66411644, 83014555, 132823288, 166029110, 332058220, 664116440]

約数ペア:

[(1, 664116440), (2, 332058220), (4, 166029110), (5, 132823288), (8, 83014555), (10, 66411644), (13, 51085880), (20, 33205822), (26, 25542940), (40, 16602911), (52, 12771470), (65, 10217176), (104, 6385735), (130, 5108588), (260, 2554294), (520, 1277147)]