42666320

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:292

約数の個数: 80

約数和(自身を含む): 103445760

約数和(自身を除く): 60779440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 79, 80, 86, 157, 158, 172, 215, 314, 316, 344, 395, 430, 628, 632, 688, 785, 790, 860, 1256, 1264, 1570, 1580, 1720, 2512, 3140, 3160, 3397, 3440, 6280, 6320, 6751, 6794, 12403, 12560, 13502, 13588, 16985, 24806, 27004, 27176, 33755, 33970, 49612, 54008, 54352, 62015, 67510, 67940, 99224, 108016, 124030, 135020, 135880, 198448, 248060, 270040, 271760, 496120, 533329, 540080, 992240, 1066658, 2133316, 2666645, 4266632, 5333290, 8533264, 10666580, 21333160, 42666320]

約数ペア:

[(1, 42666320), (2, 21333160), (4, 10666580), (5, 8533264), (8, 5333290), (10, 4266632), (16, 2666645), (20, 2133316), (40, 1066658), (43, 992240), (79, 540080), (80, 533329), (86, 496120), (157, 271760), (158, 270040), (172, 248060), (215, 198448), (314, 135880), (316, 135020), (344, 124030), (395, 108016), (430, 99224), (628, 67940), (632, 67510), (688, 62015), (785, 54352), (790, 54008), (860, 49612), (1256, 33970), (1264, 33755), (1570, 27176), (1580, 27004), (1720, 24806), (2512, 16985), (3140, 13588), (3160, 13502), (3397, 12560), (3440, 12403), (6280, 6794), (6320, 6751)]