1251840

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{163}}^1$

素因数の和:189

約数の個数: 80

約数和(自身を含む): 4026528

約数和(自身を除く): 2774688

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 163, 192, 240, 256, 320, 326, 384, 480, 489, 512, 640, 652, 768, 815, 960, 978, 1280, 1304, 1536, 1630, 1920, 1956, 2445, 2560, 2608, 3260, 3840, 3912, 4890, 5216, 6520, 7680, 7824, 9780, 10432, 13040, 15648, 19560, 20864, 26080, 31296, 39120, 41728, 52160, 62592, 78240, 83456, 104320, 125184, 156480, 208640, 250368, 312960, 417280, 625920, 1251840]

約数ペア:

[(1, 1251840), (2, 625920), (3, 417280), (4, 312960), (5, 250368), (6, 208640), (8, 156480), (10, 125184), (12, 104320), (15, 83456), (16, 78240), (20, 62592), (24, 52160), (30, 41728), (32, 39120), (40, 31296), (48, 26080), (60, 20864), (64, 19560), (80, 15648), (96, 13040), (120, 10432), (128, 9780), (160, 7824), (163, 7680), (192, 6520), (240, 5216), (256, 4890), (320, 3912), (326, 3840), (384, 3260), (480, 2608), (489, 2560), (512, 2445), (640, 1956), (652, 1920), (768, 1630), (815, 1536), (960, 1304), (978, 1280)]