7937920

素因数分解:

$2^7\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 19339200

約数和(自身を除く): 11401280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 157, 158, 160, 314, 316, 320, 395, 628, 632, 640, 785, 790, 1256, 1264, 1570, 1580, 2512, 2528, 3140, 3160, 5024, 5056, 6280, 6320, 10048, 10112, 12403, 12560, 12640, 20096, 24806, 25120, 25280, 49612, 50240, 50560, 62015, 99224, 100480, 124030, 198448, 248060, 396896, 496120, 793792, 992240, 1587584, 1984480, 3968960, 7937920]

約数ペア:

[(1, 7937920), (2, 3968960), (4, 1984480), (5, 1587584), (8, 992240), (10, 793792), (16, 496120), (20, 396896), (32, 248060), (40, 198448), (64, 124030), (79, 100480), (80, 99224), (128, 62015), (157, 50560), (158, 50240), (160, 49612), (314, 25280), (316, 25120), (320, 24806), (395, 20096), (628, 12640), (632, 12560), (640, 12403), (785, 10112), (790, 10048), (1256, 6320), (1264, 6280), (1570, 5056), (1580, 5024), (2512, 3160), (2528, 3140)]