520806680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{653}}^1$

素因数の和:948

約数の個数: 64

約数和(自身を含む): 1190384640

約数和(自身を除く): 669577960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 157, 254, 314, 508, 628, 635, 653, 785, 1016, 1256, 1270, 1306, 1570, 2540, 2612, 3140, 3265, 5080, 5224, 6280, 6530, 13060, 19939, 26120, 39878, 79756, 82931, 99695, 102521, 159512, 165862, 199390, 205042, 331724, 398780, 410084, 414655, 512605, 663448, 797560, 820168, 829310, 1025210, 1658620, 2050420, 3317240, 4100840, 13020167, 26040334, 52080668, 65100835, 104161336, 130201670, 260403340, 520806680]

約数ペア:

[(1, 520806680), (2, 260403340), (4, 130201670), (5, 104161336), (8, 65100835), (10, 52080668), (20, 26040334), (40, 13020167), (127, 4100840), (157, 3317240), (254, 2050420), (314, 1658620), (508, 1025210), (628, 829310), (635, 820168), (653, 797560), (785, 663448), (1016, 512605), (1256, 414655), (1270, 410084), (1306, 398780), (1570, 331724), (2540, 205042), (2612, 199390), (3140, 165862), (3265, 159512), (5080, 102521), (5224, 99695), (6280, 82931), (6530, 79756), (13060, 39878), (19939, 26120)]