262264340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{2503}}^1$

素因数の和:2569

約数の個数: 72

約数和(自身を含む): 615863808

約数和(自身を除く): 353599468

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 806, 845, 1612, 1690, 2015, 2503, 3380, 4030, 5006, 5239, 8060, 10012, 10478, 12515, 20956, 25030, 26195, 32539, 50060, 52390, 65078, 77593, 104780, 130156, 155186, 162695, 310372, 325390, 387965, 423007, 650780, 775930, 846014, 1008709, 1551860, 1692028, 2017418, 2115035, 4034836, 4230070, 5043545, 8460140, 10087090, 13113217, 20174180, 26226434, 52452868, 65566085, 131132170, 262264340]

約数ペア:

[(1, 262264340), (2, 131132170), (4, 65566085), (5, 52452868), (10, 26226434), (13, 20174180), (20, 13113217), (26, 10087090), (31, 8460140), (52, 5043545), (62, 4230070), (65, 4034836), (124, 2115035), (130, 2017418), (155, 1692028), (169, 1551860), (260, 1008709), (310, 846014), (338, 775930), (403, 650780), (620, 423007), (676, 387965), (806, 325390), (845, 310372), (1612, 162695), (1690, 155186), (2015, 130156), (2503, 104780), (3380, 77593), (4030, 65078), (5006, 52390), (5239, 50060), (8060, 32539), (10012, 26195), (10478, 25030), (12515, 20956)]