780365745

素因数分解:

$3^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{5521}}^1$

素因数の和:5887

約数の個数: 40

約数和(自身を含む): 1403140200

約数和(自身を除く): 622774455

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 349, 405, 1047, 1745, 3141, 5235, 5521, 9423, 15705, 16563, 27605, 28269, 47115, 49689, 82815, 141345, 149067, 248445, 447201, 745335, 1926829, 2236005, 5780487, 9634145, 17341461, 28902435, 52024383, 86707305, 156073149, 260121915, 780365745]

約数ペア:

[(1, 780365745), (3, 260121915), (5, 156073149), (9, 86707305), (15, 52024383), (27, 28902435), (45, 17341461), (81, 9634145), (135, 5780487), (349, 2236005), (405, 1926829), (1047, 745335), (1745, 447201), (3141, 248445), (5235, 149067), (5521, 141345), (9423, 82815), (15705, 49689), (16563, 47115), (27605, 28269)]