64811955

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 117855360

約数和(自身を除く): 53043405

約数列:

[1, 3, 5, 13, 15, 29, 39, 65, 73, 87, 145, 157, 195, 219, 365, 377, 435, 471, 785, 949, 1095, 1131, 1885, 2041, 2117, 2355, 2847, 4553, 4745, 5655, 6123, 6351, 10205, 10585, 11461, 13659, 14235, 22765, 27521, 30615, 31755, 34383, 57305, 59189, 68295, 82563, 137605, 148993, 171915, 177567, 295945, 332369, 412815, 446979, 744965, 887835, 997107, 1661845, 2234895, 4320797, 4985535, 12962391, 21603985, 64811955]

約数ペア:

[(1, 64811955), (3, 21603985), (5, 12962391), (13, 4985535), (15, 4320797), (29, 2234895), (39, 1661845), (65, 997107), (73, 887835), (87, 744965), (145, 446979), (157, 412815), (195, 332369), (219, 295945), (365, 177567), (377, 171915), (435, 148993), (471, 137605), (785, 82563), (949, 68295), (1095, 59189), (1131, 57305), (1885, 34383), (2041, 31755), (2117, 30615), (2355, 27521), (2847, 22765), (4553, 14235), (4745, 13659), (5655, 11461), (6123, 10585), (6351, 10205)]