20680835

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{227}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 30205440

約数和(自身を除く): 9524605

約数列:

[1, 5, 7, 19, 35, 95, 133, 137, 227, 665, 685, 959, 1135, 1589, 2603, 4313, 4795, 7945, 13015, 18221, 21565, 30191, 31099, 91105, 150955, 155495, 217693, 590881, 1088465, 2954405, 4136167, 20680835]

約数ペア:

[(1, 20680835), (5, 4136167), (7, 2954405), (19, 1088465), (35, 590881), (95, 217693), (133, 155495), (137, 150955), (227, 91105), (665, 31099), (685, 30191), (959, 21565), (1135, 18221), (1589, 13015), (2603, 7945), (4313, 4795)]