644368

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1$

素因数の和:151

約数の個数: 40

約数和(自身を含む): 1392768

約数和(自身を除く): 748400

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 68, 92, 103, 136, 184, 206, 272, 368, 391, 412, 782, 824, 1564, 1648, 1751, 2369, 3128, 3502, 4738, 6256, 7004, 9476, 14008, 18952, 28016, 37904, 40273, 80546, 161092, 322184, 644368]

約数ペア:

[(1, 644368), (2, 322184), (4, 161092), (8, 80546), (16, 40273), (17, 37904), (23, 28016), (34, 18952), (46, 14008), (68, 9476), (92, 7004), (103, 6256), (136, 4738), (184, 3502), (206, 3128), (272, 2369), (368, 1751), (391, 1648), (412, 1564), (782, 824)]