251012660

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{443}}^1\times {\mathrm{691}}^1$

素因数の和:1184

約数の個数: 48

約数和(自身を含む): 541985472

約数和(自身を除く): 290972812

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 443, 691, 820, 886, 1382, 1772, 2215, 2764, 3455, 4430, 6910, 8860, 13820, 18163, 28331, 36326, 56662, 72652, 90815, 113324, 141655, 181630, 283310, 306113, 363260, 566620, 612226, 1224452, 1530565, 3061130, 6122260, 12550633, 25101266, 50202532, 62753165, 125506330, 251012660]

約数ペア:

[(1, 251012660), (2, 125506330), (4, 62753165), (5, 50202532), (10, 25101266), (20, 12550633), (41, 6122260), (82, 3061130), (164, 1530565), (205, 1224452), (410, 612226), (443, 566620), (691, 363260), (820, 306113), (886, 283310), (1382, 181630), (1772, 141655), (2215, 113324), (2764, 90815), (3455, 72652), (4430, 56662), (6910, 36326), (8860, 28331), (13820, 18163)]