157381760

素因数分解:

$2^7\times 5^1\times {\mathrm{245909}}^1$

素因数の和:245928

約数の個数: 32

約数和(自身を含む): 376242300

約数和(自身を除く): 218860540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 245909, 491818, 983636, 1229545, 1967272, 2459090, 3934544, 4918180, 7869088, 9836360, 15738176, 19672720, 31476352, 39345440, 78690880, 157381760]

約数ペア:

[(1, 157381760), (2, 78690880), (4, 39345440), (5, 31476352), (8, 19672720), (10, 15738176), (16, 9836360), (20, 7869088), (32, 4918180), (40, 3934544), (64, 2459090), (80, 1967272), (128, 1229545), (160, 983636), (320, 491818), (640, 245909)]