90471440

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{16879}}^1$

素因数の和:16959

約数の個数: 40

約数和(自身を含む): 213498240

約数和(自身を除く): 123026800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 5360, 16879, 33758, 67516, 84395, 135032, 168790, 270064, 337580, 675160, 1130893, 1350320, 2261786, 4523572, 5654465, 9047144, 11308930, 18094288, 22617860, 45235720, 90471440]

約数ペア:

[(1, 90471440), (2, 45235720), (4, 22617860), (5, 18094288), (8, 11308930), (10, 9047144), (16, 5654465), (20, 4523572), (40, 2261786), (67, 1350320), (80, 1130893), (134, 675160), (268, 337580), (335, 270064), (536, 168790), (670, 135032), (1072, 84395), (1340, 67516), (2680, 33758), (5360, 16879)]