15933440

素因数分解:

$2^{13}\times 5^1\times {\mathrm{389}}^1$

素因数の和:420

約数の個数: 56

約数和(自身を含む): 38336220

約数和(自身を除く): 22402780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 389, 512, 640, 778, 1024, 1280, 1556, 1945, 2048, 2560, 3112, 3890, 4096, 5120, 6224, 7780, 8192, 10240, 12448, 15560, 20480, 24896, 31120, 40960, 49792, 62240, 99584, 124480, 199168, 248960, 398336, 497920, 796672, 995840, 1593344, 1991680, 3186688, 3983360, 7966720, 15933440]

約数ペア:

[(1, 15933440), (2, 7966720), (4, 3983360), (5, 3186688), (8, 1991680), (10, 1593344), (16, 995840), (20, 796672), (32, 497920), (40, 398336), (64, 248960), (80, 199168), (128, 124480), (160, 99584), (256, 62240), (320, 49792), (389, 40960), (512, 31120), (640, 24896), (778, 20480), (1024, 15560), (1280, 12448), (1556, 10240), (1945, 8192), (2048, 7780), (2560, 6224), (3112, 5120), (3890, 4096)]