19790465

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{191}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 26873856

約数和(自身を除く): 7083391

約数列:

[1, 5, 17, 23, 53, 85, 115, 191, 265, 391, 901, 955, 1219, 1955, 3247, 4393, 4505, 6095, 10123, 16235, 20723, 21965, 50615, 74681, 103615, 172091, 232829, 373405, 860455, 1164145, 3958093, 19790465]

約数ペア:

[(1, 19790465), (5, 3958093), (17, 1164145), (23, 860455), (53, 373405), (85, 232829), (115, 172091), (191, 103615), (265, 74681), (391, 50615), (901, 21965), (955, 20723), (1219, 16235), (1955, 10123), (3247, 6095), (4393, 4505)]