661569208

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{18211}}^1$

素因数の和:18475

約数の個数: 32

約数和(自身を含む): 1311264000

約数和(自身を除く): 649694792

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 239, 478, 956, 1912, 4541, 9082, 18164, 18211, 36328, 36422, 72844, 145688, 346009, 692018, 1384036, 2768072, 4352429, 8704858, 17409716, 34819432, 82696151, 165392302, 330784604, 661569208]

約数ペア:

[(1, 661569208), (2, 330784604), (4, 165392302), (8, 82696151), (19, 34819432), (38, 17409716), (76, 8704858), (152, 4352429), (239, 2768072), (478, 1384036), (956, 692018), (1912, 346009), (4541, 145688), (9082, 72844), (18164, 36422), (18211, 36328)]