64716800

素因数分解:

$2^{15}\times 5^2\times {\mathrm{79}}^1$

素因数の和:119

約数の個数: 96

約数和(自身を含む): 162526800

約数和(自身を除く): 97810000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 128, 158, 160, 200, 256, 316, 320, 395, 400, 512, 632, 640, 790, 800, 1024, 1264, 1280, 1580, 1600, 1975, 2048, 2528, 2560, 3160, 3200, 3950, 4096, 5056, 5120, 6320, 6400, 7900, 8192, 10112, 10240, 12640, 12800, 15800, 16384, 20224, 20480, 25280, 25600, 31600, 32768, 40448, 40960, 50560, 51200, 63200, 80896, 81920, 101120, 102400, 126400, 161792, 163840, 202240, 204800, 252800, 323584, 404480, 409600, 505600, 647168, 808960, 819200, 1011200, 1294336, 1617920, 2022400, 2588672, 3235840, 4044800, 6471680, 8089600, 12943360, 16179200, 32358400, 64716800]

約数ペア:

[(1, 64716800), (2, 32358400), (4, 16179200), (5, 12943360), (8, 8089600), (10, 6471680), (16, 4044800), (20, 3235840), (25, 2588672), (32, 2022400), (40, 1617920), (50, 1294336), (64, 1011200), (79, 819200), (80, 808960), (100, 647168), (128, 505600), (158, 409600), (160, 404480), (200, 323584), (256, 252800), (316, 204800), (320, 202240), (395, 163840), (400, 161792), (512, 126400), (632, 102400), (640, 101120), (790, 81920), (800, 80896), (1024, 63200), (1264, 51200), (1280, 50560), (1580, 40960), (1600, 40448), (1975, 32768), (2048, 31600), (2528, 25600), (2560, 25280), (3160, 20480), (3200, 20224), (3950, 16384), (4096, 15800), (5056, 12800), (5120, 12640), (6320, 10240), (6400, 10112), (7900, 8192)]