1520807757

素因数分解:

$3^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{263}}^1\times {\mathrm{283}}^1$

素因数の和:702

約数の個数: 48

約数和(自身を含む): 2393233920

約数和(自身を除く): 872426163

約数列:

[1, 3, 7, 21, 49, 139, 147, 263, 283, 417, 789, 849, 973, 1841, 1981, 2919, 5523, 5943, 6811, 12887, 13867, 20433, 36557, 38661, 39337, 41601, 74429, 109671, 118011, 223287, 255899, 275359, 521003, 767697, 826077, 1563009, 1791293, 1927513, 3647021, 5373879, 5782539, 10345631, 10941063, 31036893, 72419417, 217258251, 506935919, 1520807757]

約数ペア:

[(1, 1520807757), (3, 506935919), (7, 217258251), (21, 72419417), (49, 31036893), (139, 10941063), (147, 10345631), (263, 5782539), (283, 5373879), (417, 3647021), (789, 1927513), (849, 1791293), (973, 1563009), (1841, 826077), (1981, 767697), (2919, 521003), (5523, 275359), (5943, 255899), (6811, 223287), (12887, 118011), (13867, 109671), (20433, 74429), (36557, 41601), (38661, 39337)]