201731790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{517261}}^1$

素因数の和:517284

約数の個数: 32

約数和(自身を含む): 521400096

約数和(自身を除く): 319668306

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 517261, 1034522, 1551783, 2586305, 3103566, 5172610, 6724393, 7758915, 13448786, 15517830, 20173179, 33621965, 40346358, 67243930, 100865895, 201731790]

約数ペア:

[(1, 201731790), (2, 100865895), (3, 67243930), (5, 40346358), (6, 33621965), (10, 20173179), (13, 15517830), (15, 13448786), (26, 7758915), (30, 6724393), (39, 5172610), (65, 3103566), (78, 2586305), (130, 1551783), (195, 1034522), (390, 517261)]