65991680

素因数分解:

$2^{10}\times 5^1\times {\mathrm{12889}}^1$

素因数の和:12914

約数の個数: 44

約数和(自身を含む): 158314980

約数和(自身を除く): 92323300

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 12889, 25778, 51556, 64445, 103112, 128890, 206224, 257780, 412448, 515560, 824896, 1031120, 1649792, 2062240, 3299584, 4124480, 6599168, 8248960, 13198336, 16497920, 32995840, 65991680]

約数ペア:

[(1, 65991680), (2, 32995840), (4, 16497920), (5, 13198336), (8, 8248960), (10, 6599168), (16, 4124480), (20, 3299584), (32, 2062240), (40, 1649792), (64, 1031120), (80, 824896), (128, 515560), (160, 412448), (256, 257780), (320, 206224), (512, 128890), (640, 103112), (1024, 64445), (1280, 51556), (2560, 25778), (5120, 12889)]