156939520

素因数分解:

$2^8\times 5^1\times {\mathrm{122609}}^1$

素因数の和:122630

約数の個数: 36

約数和(自身を含む): 375922260

約数和(自身を除く): 218982740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 122609, 245218, 490436, 613045, 980872, 1226090, 1961744, 2452180, 3923488, 4904360, 7846976, 9808720, 15693952, 19617440, 31387904, 39234880, 78469760, 156939520]

約数ペア:

[(1, 156939520), (2, 78469760), (4, 39234880), (5, 31387904), (8, 19617440), (10, 15693952), (16, 9808720), (20, 7846976), (32, 4904360), (40, 3923488), (64, 2452180), (80, 1961744), (128, 1226090), (160, 980872), (256, 613045), (320, 490436), (640, 245218), (1280, 122609)]