28764580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{349}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 65444400

約数和(自身を除く): 36679820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 317, 349, 634, 698, 1268, 1396, 1585, 1745, 3170, 3490, 4121, 4537, 6340, 6980, 8242, 9074, 16484, 18148, 20605, 22685, 41210, 45370, 82420, 90740, 110633, 221266, 442532, 553165, 1106330, 1438229, 2212660, 2876458, 5752916, 7191145, 14382290, 28764580]

約数ペア:

[(1, 28764580), (2, 14382290), (4, 7191145), (5, 5752916), (10, 2876458), (13, 2212660), (20, 1438229), (26, 1106330), (52, 553165), (65, 442532), (130, 221266), (260, 110633), (317, 90740), (349, 82420), (634, 45370), (698, 41210), (1268, 22685), (1396, 20605), (1585, 18148), (1745, 16484), (3170, 9074), (3490, 8242), (4121, 6980), (4537, 6340)]