268647440

素因数分解:

$2^4\times 5^1\times {\mathrm{181}}^1\times {\mathrm{18553}}^1$

素因数の和:18747

約数の個数: 40

約数和(自身を含む): 628090008

約数和(自身を除く): 359442568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 181, 362, 724, 905, 1448, 1810, 2896, 3620, 7240, 14480, 18553, 37106, 74212, 92765, 148424, 185530, 296848, 371060, 742120, 1484240, 3358093, 6716186, 13432372, 16790465, 26864744, 33580930, 53729488, 67161860, 134323720, 268647440]

約数ペア:

[(1, 268647440), (2, 134323720), (4, 67161860), (5, 53729488), (8, 33580930), (10, 26864744), (16, 16790465), (20, 13432372), (40, 6716186), (80, 3358093), (181, 1484240), (362, 742120), (724, 371060), (905, 296848), (1448, 185530), (1810, 148424), (2896, 92765), (3620, 74212), (7240, 37106), (14480, 18553)]