219977555

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{151}}^1\times {\mathrm{389}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 307307520

約数和(自身を除く): 87329965

約数列:

[1, 5, 7, 35, 107, 151, 389, 535, 749, 755, 1057, 1945, 2723, 3745, 5285, 13615, 16157, 41623, 58739, 80785, 113099, 208115, 291361, 293695, 411173, 565495, 1456805, 2055865, 6285073, 31425365, 43995511, 219977555]

約数ペア:

[(1, 219977555), (5, 43995511), (7, 31425365), (35, 6285073), (107, 2055865), (151, 1456805), (389, 565495), (535, 411173), (749, 293695), (755, 291361), (1057, 208115), (1945, 113099), (2723, 80785), (3745, 58739), (5285, 41623), (13615, 16157)]