81272310

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20369}}^1$

素因数の和:20405

約数の個数: 64

約数和(自身を含む): 234662400

約数和(自身を除く): 153390090

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990, 20369, 40738, 61107, 101845, 122214, 142583, 203690, 285166, 305535, 387011, 427749, 611070, 712915, 774022, 855498, 1161033, 1425830, 1935055, 2138745, 2322066, 2709077, 3870110, 4277490, 5418154, 5805165, 8127231, 11610330, 13545385, 16254462, 27090770, 40636155, 81272310]

約数ペア:

[(1, 81272310), (2, 40636155), (3, 27090770), (5, 16254462), (6, 13545385), (7, 11610330), (10, 8127231), (14, 5805165), (15, 5418154), (19, 4277490), (21, 3870110), (30, 2709077), (35, 2322066), (38, 2138745), (42, 1935055), (57, 1425830), (70, 1161033), (95, 855498), (105, 774022), (114, 712915), (133, 611070), (190, 427749), (210, 387011), (266, 305535), (285, 285166), (399, 203690), (570, 142583), (665, 122214), (798, 101845), (1330, 61107), (1995, 40738), (3990, 20369)]