1617920

素因数分解:

$2^{12}\times 5^1\times {\mathrm{79}}^1$

素因数の和:108

約数の個数: 52

約数和(自身を含む): 3931680

約数和(自身を除く): 2313760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 128, 158, 160, 256, 316, 320, 395, 512, 632, 640, 790, 1024, 1264, 1280, 1580, 2048, 2528, 2560, 3160, 4096, 5056, 5120, 6320, 10112, 10240, 12640, 20224, 20480, 25280, 40448, 50560, 80896, 101120, 161792, 202240, 323584, 404480, 808960, 1617920]

約数ペア:

[(1, 1617920), (2, 808960), (4, 404480), (5, 323584), (8, 202240), (10, 161792), (16, 101120), (20, 80896), (32, 50560), (40, 40448), (64, 25280), (79, 20480), (80, 20224), (128, 12640), (158, 10240), (160, 10112), (256, 6320), (316, 5120), (320, 5056), (395, 4096), (512, 3160), (632, 2560), (640, 2528), (790, 2048), (1024, 1580), (1264, 1280)]