20091435

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{359}}^1$

素因数の和:428

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 20551125

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 41, 65, 91, 105, 123, 195, 205, 273, 287, 359, 455, 533, 615, 861, 1077, 1365, 1435, 1599, 1795, 2513, 2665, 3731, 4305, 4667, 5385, 7539, 7995, 11193, 12565, 14001, 14719, 18655, 23335, 32669, 37695, 44157, 55965, 70005, 73595, 98007, 103033, 163345, 191347, 220785, 309099, 490035, 515165, 574041, 956735, 1339429, 1545495, 2870205, 4018287, 6697145, 20091435]

約数ペア:

[(1, 20091435), (3, 6697145), (5, 4018287), (7, 2870205), (13, 1545495), (15, 1339429), (21, 956735), (35, 574041), (39, 515165), (41, 490035), (65, 309099), (91, 220785), (105, 191347), (123, 163345), (195, 103033), (205, 98007), (273, 73595), (287, 70005), (359, 55965), (455, 44157), (533, 37695), (615, 32669), (861, 23335), (1077, 18655), (1365, 14719), (1435, 14001), (1599, 12565), (1795, 11193), (2513, 7995), (2665, 7539), (3731, 5385), (4305, 4667)]