389288960

素因数分解:

$2^{10}\times 5^1\times {\mathrm{139}}^1\times {\mathrm{547}}^1$

素因数の和:711

約数の個数: 88

約数和(自身を含む): 942275040

約数和(自身を除く): 552986080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 256, 278, 320, 512, 547, 556, 640, 695, 1024, 1094, 1112, 1280, 1390, 2188, 2224, 2560, 2735, 2780, 4376, 4448, 5120, 5470, 5560, 8752, 8896, 10940, 11120, 17504, 17792, 21880, 22240, 35008, 35584, 43760, 44480, 70016, 71168, 76033, 87520, 88960, 140032, 142336, 152066, 175040, 177920, 280064, 304132, 350080, 355840, 380165, 560128, 608264, 700160, 711680, 760330, 1216528, 1400320, 1520660, 2433056, 2800640, 3041320, 4866112, 6082640, 9732224, 12165280, 19464448, 24330560, 38928896, 48661120, 77857792, 97322240, 194644480, 389288960]

約数ペア:

[(1, 389288960), (2, 194644480), (4, 97322240), (5, 77857792), (8, 48661120), (10, 38928896), (16, 24330560), (20, 19464448), (32, 12165280), (40, 9732224), (64, 6082640), (80, 4866112), (128, 3041320), (139, 2800640), (160, 2433056), (256, 1520660), (278, 1400320), (320, 1216528), (512, 760330), (547, 711680), (556, 700160), (640, 608264), (695, 560128), (1024, 380165), (1094, 355840), (1112, 350080), (1280, 304132), (1390, 280064), (2188, 177920), (2224, 175040), (2560, 152066), (2735, 142336), (2780, 140032), (4376, 88960), (4448, 87520), (5120, 76033), (5470, 71168), (5560, 70016), (8752, 44480), (8896, 43760), (10940, 35584), (11120, 35008), (17504, 22240), (17792, 21880)]