19685235

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 35366400

約数和(自身を除く): 15681165

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 239, 255, 285, 289, 323, 717, 867, 969, 1195, 1445, 1615, 3585, 4063, 4335, 4541, 4845, 5491, 12189, 13623, 16473, 20315, 22705, 27455, 60945, 68115, 69071, 77197, 82365, 207213, 231591, 345355, 385985, 1036065, 1157955, 1312349, 3937047, 6561745, 19685235]

約数ペア:

[(1, 19685235), (3, 6561745), (5, 3937047), (15, 1312349), (17, 1157955), (19, 1036065), (51, 385985), (57, 345355), (85, 231591), (95, 207213), (239, 82365), (255, 77197), (285, 69071), (289, 68115), (323, 60945), (717, 27455), (867, 22705), (969, 20315), (1195, 16473), (1445, 13623), (1615, 12189), (3585, 5491), (4063, 4845), (4335, 4541)]