78395440

素因数分解:

$2^4\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1553}}^1$

素因数の和:2197

約数の個数: 40

約数和(自身を含む): 182675808

約数和(自身を除く): 104280368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 631, 1262, 1553, 2524, 3106, 3155, 5048, 6212, 6310, 7765, 10096, 12424, 12620, 15530, 24848, 25240, 31060, 50480, 62120, 124240, 979943, 1959886, 3919772, 4899715, 7839544, 9799430, 15679088, 19598860, 39197720, 78395440]

約数ペア:

[(1, 78395440), (2, 39197720), (4, 19598860), (5, 15679088), (8, 9799430), (10, 7839544), (16, 4899715), (20, 3919772), (40, 1959886), (80, 979943), (631, 124240), (1262, 62120), (1553, 50480), (2524, 31060), (3106, 25240), (3155, 24848), (5048, 15530), (6212, 12620), (6310, 12424), (7765, 10096)]