65867320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{40163}}^1$

素因数の和:40215

約数の個数: 32

約数和(自身を含む): 151819920

約数和(自身を除く): 85952600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 40163, 80326, 160652, 200815, 321304, 401630, 803260, 1606520, 1646683, 3293366, 6586732, 8233415, 13173464, 16466830, 32933660, 65867320]

約数ペア:

[(1, 65867320), (2, 32933660), (4, 16466830), (5, 13173464), (8, 8233415), (10, 6586732), (20, 3293366), (40, 1646683), (41, 1606520), (82, 803260), (164, 401630), (205, 321304), (328, 200815), (410, 160652), (820, 80326), (1640, 40163)]