20123366920

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1\times {\mathrm{43403}}^1$

素因数の和:43654

約数の個数: 64

約数和(自身を含む): 46220051520

約数和(自身を除く): 26096684600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 173, 268, 335, 346, 536, 670, 692, 865, 1340, 1384, 1730, 2680, 3460, 6920, 11591, 23182, 43403, 46364, 57955, 86806, 92728, 115910, 173612, 217015, 231820, 347224, 434030, 463640, 868060, 1736120, 2908001, 5816002, 7508719, 11632004, 14540005, 15017438, 23264008, 29080010, 30034876, 37543595, 58160020, 60069752, 75087190, 116320040, 150174380, 300348760, 503084173, 1006168346, 2012336692, 2515420865, 4024673384, 5030841730, 10061683460, 20123366920]

約数ペア:

[(1, 20123366920), (2, 10061683460), (4, 5030841730), (5, 4024673384), (8, 2515420865), (10, 2012336692), (20, 1006168346), (40, 503084173), (67, 300348760), (134, 150174380), (173, 116320040), (268, 75087190), (335, 60069752), (346, 58160020), (536, 37543595), (670, 30034876), (692, 29080010), (865, 23264008), (1340, 15017438), (1384, 14540005), (1730, 11632004), (2680, 7508719), (3460, 5816002), (6920, 2908001), (11591, 1736120), (23182, 868060), (43403, 463640), (46364, 434030), (57955, 347224), (86806, 231820), (92728, 217015), (115910, 173612)]