393896960

素因数分解:

$2^{10}\times 5^1\times {\mathrm{107}}^1\times {\mathrm{719}}^1$

素因数の和:851

約数の個数: 88

約数和(自身を含む): 955048320

約数和(自身を除く): 561151360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 107, 128, 160, 214, 256, 320, 428, 512, 535, 640, 719, 856, 1024, 1070, 1280, 1438, 1712, 2140, 2560, 2876, 3424, 3595, 4280, 5120, 5752, 6848, 7190, 8560, 11504, 13696, 14380, 17120, 23008, 27392, 28760, 34240, 46016, 54784, 57520, 68480, 76933, 92032, 109568, 115040, 136960, 153866, 184064, 230080, 273920, 307732, 368128, 384665, 460160, 547840, 615464, 736256, 769330, 920320, 1230928, 1538660, 1840640, 2461856, 3077320, 3681280, 4923712, 6154640, 9847424, 12309280, 19694848, 24618560, 39389696, 49237120, 78779392, 98474240, 196948480, 393896960]

約数ペア:

[(1, 393896960), (2, 196948480), (4, 98474240), (5, 78779392), (8, 49237120), (10, 39389696), (16, 24618560), (20, 19694848), (32, 12309280), (40, 9847424), (64, 6154640), (80, 4923712), (107, 3681280), (128, 3077320), (160, 2461856), (214, 1840640), (256, 1538660), (320, 1230928), (428, 920320), (512, 769330), (535, 736256), (640, 615464), (719, 547840), (856, 460160), (1024, 384665), (1070, 368128), (1280, 307732), (1438, 273920), (1712, 230080), (2140, 184064), (2560, 153866), (2876, 136960), (3424, 115040), (3595, 109568), (4280, 92032), (5120, 76933), (5752, 68480), (6848, 57520), (7190, 54784), (8560, 46016), (11504, 34240), (13696, 28760), (14380, 27392), (17120, 23008)]