20157130

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1327}}^1$

素因数の和:1379

約数の個数: 48

約数和(自身を含む): 43600896

約数和(自身を除く): 23443766

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 49, 62, 70, 98, 155, 217, 245, 310, 434, 490, 1085, 1327, 1519, 2170, 2654, 3038, 6635, 7595, 9289, 13270, 15190, 18578, 41137, 46445, 65023, 82274, 92890, 130046, 205685, 287959, 325115, 411370, 575918, 650230, 1439795, 2015713, 2879590, 4031426, 10078565, 20157130]

約数ペア:

[(1, 20157130), (2, 10078565), (5, 4031426), (7, 2879590), (10, 2015713), (14, 1439795), (31, 650230), (35, 575918), (49, 411370), (62, 325115), (70, 287959), (98, 205685), (155, 130046), (217, 92890), (245, 82274), (310, 65023), (434, 46445), (490, 41137), (1085, 18578), (1327, 15190), (1519, 13270), (2170, 9289), (2654, 7595), (3038, 6635)]