178620990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{258871}}^1$

素因数の和:258904

約数の個数: 32

約数和(自身を含む): 447330816

約数和(自身を除く): 268709826

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 258871, 517742, 776613, 1294355, 1553226, 2588710, 3883065, 5954033, 7766130, 11908066, 17862099, 29770165, 35724198, 59540330, 89310495, 178620990]

約数ペア:

[(1, 178620990), (2, 89310495), (3, 59540330), (5, 35724198), (6, 29770165), (10, 17862099), (15, 11908066), (23, 7766130), (30, 5954033), (46, 3883065), (69, 2588710), (115, 1553226), (138, 1294355), (230, 776613), (345, 517742), (690, 258871)]