87813760

素因数分解:

$2^7\times 5^1\times {\mathrm{137209}}^1$

素因数の和:137228

約数の個数: 32

約数和(自身を含む): 209931300

約数和(自身を除く): 122117540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 137209, 274418, 548836, 686045, 1097672, 1372090, 2195344, 2744180, 4390688, 5488360, 8781376, 10976720, 17562752, 21953440, 43906880, 87813760]

約数ペア:

[(1, 87813760), (2, 43906880), (4, 21953440), (5, 17562752), (8, 10976720), (10, 8781376), (16, 5488360), (20, 4390688), (32, 2744180), (40, 2195344), (64, 1372090), (80, 1097672), (128, 686045), (160, 548836), (320, 274418), (640, 137209)]