31751680

素因数分解:

$2^9\times 5^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:259

約数の個数: 80

約数和(自身を含む): 77584320

約数和(自身を除く): 45832640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 157, 158, 160, 256, 314, 316, 320, 395, 512, 628, 632, 640, 785, 790, 1256, 1264, 1280, 1570, 1580, 2512, 2528, 2560, 3140, 3160, 5024, 5056, 6280, 6320, 10048, 10112, 12403, 12560, 12640, 20096, 20224, 24806, 25120, 25280, 40192, 40448, 49612, 50240, 50560, 62015, 80384, 99224, 100480, 101120, 124030, 198448, 200960, 202240, 248060, 396896, 401920, 496120, 793792, 992240, 1587584, 1984480, 3175168, 3968960, 6350336, 7937920, 15875840, 31751680]

約数ペア:

[(1, 31751680), (2, 15875840), (4, 7937920), (5, 6350336), (8, 3968960), (10, 3175168), (16, 1984480), (20, 1587584), (32, 992240), (40, 793792), (64, 496120), (79, 401920), (80, 396896), (128, 248060), (157, 202240), (158, 200960), (160, 198448), (256, 124030), (314, 101120), (316, 100480), (320, 99224), (395, 80384), (512, 62015), (628, 50560), (632, 50240), (640, 49612), (785, 40448), (790, 40192), (1256, 25280), (1264, 25120), (1280, 24806), (1570, 20224), (1580, 20096), (2512, 12640), (2528, 12560), (2560, 12403), (3140, 10112), (3160, 10048), (5024, 6320), (5056, 6280)]