18964480

素因数分解:

$2^{13}\times 5^1\times {\mathrm{463}}^1$

素因数の和:494

約数の個数: 56

約数和(自身を含む): 45610272

約数和(自身を除く): 26645792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 463, 512, 640, 926, 1024, 1280, 1852, 2048, 2315, 2560, 3704, 4096, 4630, 5120, 7408, 8192, 9260, 10240, 14816, 18520, 20480, 29632, 37040, 40960, 59264, 74080, 118528, 148160, 237056, 296320, 474112, 592640, 948224, 1185280, 1896448, 2370560, 3792896, 4741120, 9482240, 18964480]

約数ペア:

[(1, 18964480), (2, 9482240), (4, 4741120), (5, 3792896), (8, 2370560), (10, 1896448), (16, 1185280), (20, 948224), (32, 592640), (40, 474112), (64, 296320), (80, 237056), (128, 148160), (160, 118528), (256, 74080), (320, 59264), (463, 40960), (512, 37040), (640, 29632), (926, 20480), (1024, 18520), (1280, 14816), (1852, 10240), (2048, 9260), (2315, 8192), (2560, 7408), (3704, 5120), (4096, 4630)]