17841920

素因数分解:

$2^8\times 5^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:337

約数の個数: 72

約数和(自身を含む): 43708896

約数和(自身を除く): 25866976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 64, 80, 106, 128, 160, 212, 256, 263, 265, 320, 424, 526, 530, 640, 848, 1052, 1060, 1280, 1315, 1696, 2104, 2120, 2630, 3392, 4208, 4240, 5260, 6784, 8416, 8480, 10520, 13568, 13939, 16832, 16960, 21040, 27878, 33664, 33920, 42080, 55756, 67328, 67840, 69695, 84160, 111512, 139390, 168320, 223024, 278780, 336640, 446048, 557560, 892096, 1115120, 1784192, 2230240, 3568384, 4460480, 8920960, 17841920]

約数ペア:

[(1, 17841920), (2, 8920960), (4, 4460480), (5, 3568384), (8, 2230240), (10, 1784192), (16, 1115120), (20, 892096), (32, 557560), (40, 446048), (53, 336640), (64, 278780), (80, 223024), (106, 168320), (128, 139390), (160, 111512), (212, 84160), (256, 69695), (263, 67840), (265, 67328), (320, 55756), (424, 42080), (526, 33920), (530, 33664), (640, 27878), (848, 21040), (1052, 16960), (1060, 16832), (1280, 13939), (1315, 13568), (1696, 10520), (2104, 8480), (2120, 8416), (2630, 6784), (3392, 5260), (4208, 4240)]