201639965

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{347}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 262987776

約数和(自身を除く): 61347811

約数列:

[1, 5, 23, 31, 115, 155, 163, 347, 713, 815, 1735, 3565, 3749, 5053, 7981, 10757, 18745, 25265, 39905, 53785, 56561, 116219, 247411, 282805, 581095, 1237055, 1300903, 1753391, 6504515, 8766955, 40327993, 201639965]

約数ペア:

[(1, 201639965), (5, 40327993), (23, 8766955), (31, 6504515), (115, 1753391), (155, 1300903), (163, 1237055), (347, 581095), (713, 282805), (815, 247411), (1735, 116219), (3565, 56561), (3749, 53785), (5053, 39905), (7981, 25265), (10757, 18745)]