890221255

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{15313}}^1$

素因数の和:15487

約数の個数: 32

約数和(自身を含む): 1340771328

約数和(自身を除く): 450550073

約数列:

[1, 5, 7, 11, 35, 55, 77, 151, 385, 755, 1057, 1661, 5285, 8305, 11627, 15313, 58135, 76565, 107191, 168443, 535955, 842215, 1179101, 2312263, 5895505, 11561315, 16185841, 25434893, 80929205, 127174465, 178044251, 890221255]

約数ペア:

[(1, 890221255), (5, 178044251), (7, 127174465), (11, 80929205), (35, 25434893), (55, 16185841), (77, 11561315), (151, 5895505), (385, 2312263), (755, 1179101), (1057, 842215), (1661, 535955), (5285, 168443), (8305, 107191), (11627, 76565), (15313, 58135)]