1663280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1223}}^1$

素因数の和:1253

約数の個数: 40

約数和(自身を含む): 4097952

約数和(自身を除く): 2434672

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1223, 1360, 2446, 4892, 6115, 9784, 12230, 19568, 20791, 24460, 41582, 48920, 83164, 97840, 103955, 166328, 207910, 332656, 415820, 831640, 1663280]

約数ペア:

[(1, 1663280), (2, 831640), (4, 415820), (5, 332656), (8, 207910), (10, 166328), (16, 103955), (17, 97840), (20, 83164), (34, 48920), (40, 41582), (68, 24460), (80, 20791), (85, 19568), (136, 12230), (170, 9784), (272, 6115), (340, 4892), (680, 2446), (1223, 1360)]