65996800

素因数分解:

$2^{11}\times 5^2\times {\mathrm{1289}}^1$

素因数の和:1321

約数の個数: 72

約数和(自身を含む): 163759050

約数和(自身を除く): 97762250

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1024, 1280, 1289, 1600, 2048, 2560, 2578, 3200, 5120, 5156, 6400, 6445, 10240, 10312, 12800, 12890, 20624, 25600, 25780, 32225, 41248, 51200, 51560, 64450, 82496, 103120, 128900, 164992, 206240, 257800, 329984, 412480, 515600, 659968, 824960, 1031200, 1319936, 1649920, 2062400, 2639872, 3299840, 4124800, 6599680, 8249600, 13199360, 16499200, 32998400, 65996800]

約数ペア:

[(1, 65996800), (2, 32998400), (4, 16499200), (5, 13199360), (8, 8249600), (10, 6599680), (16, 4124800), (20, 3299840), (25, 2639872), (32, 2062400), (40, 1649920), (50, 1319936), (64, 1031200), (80, 824960), (100, 659968), (128, 515600), (160, 412480), (200, 329984), (256, 257800), (320, 206240), (400, 164992), (512, 128900), (640, 103120), (800, 82496), (1024, 64450), (1280, 51560), (1289, 51200), (1600, 41248), (2048, 32225), (2560, 25780), (2578, 25600), (3200, 20624), (5120, 12890), (5156, 12800), (6400, 10312), (6445, 10240)]