25381760

素因数分解:

$2^7\times 5^1\times {\mathrm{39659}}^1$

素因数の和:39678

約数の個数: 32

約数和(自身を含む): 60679800

約数和(自身を除く): 35298040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 39659, 79318, 158636, 198295, 317272, 396590, 634544, 793180, 1269088, 1586360, 2538176, 3172720, 5076352, 6345440, 12690880, 25381760]

約数ペア:

[(1, 25381760), (2, 12690880), (4, 6345440), (5, 5076352), (8, 3172720), (10, 2538176), (16, 1586360), (20, 1269088), (32, 793180), (40, 634544), (64, 396590), (80, 317272), (128, 198295), (160, 158636), (320, 79318), (640, 39659)]