19783620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{839}}^1$

素因数の和:985

約数の個数: 72

約数和(自身を含む): 60540480

約数和(自身を除く): 40756860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 839, 1179, 1310, 1572, 1678, 1965, 2358, 2517, 2620, 3356, 3930, 4195, 4716, 5034, 5895, 7551, 7860, 8390, 10068, 11790, 12585, 15102, 16780, 23580, 25170, 30204, 37755, 50340, 75510, 109909, 151020, 219818, 329727, 439636, 549545, 659454, 989181, 1099090, 1318908, 1648635, 1978362, 2198180, 3297270, 3956724, 4945905, 6594540, 9891810, 19783620]

約数ペア:

[(1, 19783620), (2, 9891810), (3, 6594540), (4, 4945905), (5, 3956724), (6, 3297270), (9, 2198180), (10, 1978362), (12, 1648635), (15, 1318908), (18, 1099090), (20, 989181), (30, 659454), (36, 549545), (45, 439636), (60, 329727), (90, 219818), (131, 151020), (180, 109909), (262, 75510), (393, 50340), (524, 37755), (655, 30204), (786, 25170), (839, 23580), (1179, 16780), (1310, 15102), (1572, 12585), (1678, 11790), (1965, 10068), (2358, 8390), (2517, 7860), (2620, 7551), (3356, 5895), (3930, 5034), (4195, 4716)]