2543240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{293}}^1$

素因数の和:342

約数の個数: 64

約数和(自身を含む): 6773760

約数和(自身を除く): 4230520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 293, 310, 434, 586, 620, 868, 1085, 1172, 1240, 1465, 1736, 2051, 2170, 2344, 2930, 4102, 4340, 5860, 8204, 8680, 9083, 10255, 11720, 16408, 18166, 20510, 36332, 41020, 45415, 63581, 72664, 82040, 90830, 127162, 181660, 254324, 317905, 363320, 508648, 635810, 1271620, 2543240]

約数ペア:

[(1, 2543240), (2, 1271620), (4, 635810), (5, 508648), (7, 363320), (8, 317905), (10, 254324), (14, 181660), (20, 127162), (28, 90830), (31, 82040), (35, 72664), (40, 63581), (56, 45415), (62, 41020), (70, 36332), (124, 20510), (140, 18166), (155, 16408), (217, 11720), (248, 10255), (280, 9083), (293, 8680), (310, 8204), (434, 5860), (586, 4340), (620, 4102), (868, 2930), (1085, 2344), (1172, 2170), (1240, 2051), (1465, 1736)]