131907680

素因数分解:

$2^5\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1861}}^1$

素因数の和:2319

約数の個数: 48

約数和(自身を含む): 312503184

約数和(自身を除く): 180595504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 443, 886, 1772, 1861, 2215, 3544, 3722, 4430, 7088, 7444, 8860, 9305, 14176, 14888, 17720, 18610, 29776, 35440, 37220, 59552, 70880, 74440, 148880, 297760, 824423, 1648846, 3297692, 4122115, 6595384, 8244230, 13190768, 16488460, 26381536, 32976920, 65953840, 131907680]

約数ペア:

[(1, 131907680), (2, 65953840), (4, 32976920), (5, 26381536), (8, 16488460), (10, 13190768), (16, 8244230), (20, 6595384), (32, 4122115), (40, 3297692), (80, 1648846), (160, 824423), (443, 297760), (886, 148880), (1772, 74440), (1861, 70880), (2215, 59552), (3544, 37220), (3722, 35440), (4430, 29776), (7088, 18610), (7444, 17720), (8860, 14888), (9305, 14176)]