26208640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1321}}^1$

素因数の和:1371

約数の個数: 64

約数和(自身を含む): 64725120

約数和(自身を除く): 38516480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1321, 1984, 2480, 2642, 3968, 4960, 5284, 6605, 9920, 10568, 13210, 19840, 21136, 26420, 40951, 42272, 52840, 81902, 84544, 105680, 163804, 169088, 204755, 211360, 327608, 409510, 422720, 655216, 819020, 845440, 1310432, 1638040, 2620864, 3276080, 5241728, 6552160, 13104320, 26208640]

約数ペア:

[(1, 26208640), (2, 13104320), (4, 6552160), (5, 5241728), (8, 3276080), (10, 2620864), (16, 1638040), (20, 1310432), (31, 845440), (32, 819020), (40, 655216), (62, 422720), (64, 409510), (80, 327608), (124, 211360), (128, 204755), (155, 169088), (160, 163804), (248, 105680), (310, 84544), (320, 81902), (496, 52840), (620, 42272), (640, 40951), (992, 26420), (1240, 21136), (1321, 19840), (1984, 13210), (2480, 10568), (2642, 9920), (3968, 6605), (4960, 5284)]