20538892790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{1601}}^1\times {\mathrm{7591}}^1$

素因数の和:9225

約数の個数: 48

約数和(自身を含む): 40062892896

約数和(自身を除く): 19524000106

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1601, 1690, 3202, 7591, 8005, 15182, 16010, 20813, 37955, 41626, 75910, 98683, 104065, 197366, 208130, 270569, 493415, 541138, 986830, 1282879, 1352845, 2565758, 2705690, 6414395, 12153191, 12828790, 24306382, 60765955, 121531910, 157991483, 315982966, 789957415, 1579914830, 2053889279, 4107778558, 10269446395, 20538892790]

約数ペア:

[(1, 20538892790), (2, 10269446395), (5, 4107778558), (10, 2053889279), (13, 1579914830), (26, 789957415), (65, 315982966), (130, 157991483), (169, 121531910), (338, 60765955), (845, 24306382), (1601, 12828790), (1690, 12153191), (3202, 6414395), (7591, 2705690), (8005, 2565758), (15182, 1352845), (16010, 1282879), (20813, 986830), (37955, 541138), (41626, 493415), (75910, 270569), (98683, 208130), (104065, 197366)]