78436480

素因数分解:

$2^7\times 5^1\times {\mathrm{122557}}^1$

素因数の和:122576

約数の個数: 32

約数和(自身を含む): 187513740

約数和(自身を除く): 109077260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 122557, 245114, 490228, 612785, 980456, 1225570, 1960912, 2451140, 3921824, 4902280, 7843648, 9804560, 15687296, 19609120, 39218240, 78436480]

約数ペア:

[(1, 78436480), (2, 39218240), (4, 19609120), (5, 15687296), (8, 9804560), (10, 7843648), (16, 4902280), (20, 3921824), (32, 2451140), (40, 1960912), (64, 1225570), (80, 980456), (128, 612785), (160, 490228), (320, 245114), (640, 122557)]