90998720

素因数分解:

$2^6\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1429}}^1$

素因数の和:1645

約数の個数: 56

約数和(自身を含む): 217932000

約数和(自身を除く): 126933280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 199, 320, 398, 796, 995, 1429, 1592, 1990, 2858, 3184, 3980, 5716, 6368, 7145, 7960, 11432, 12736, 14290, 15920, 22864, 28580, 31840, 45728, 57160, 63680, 91456, 114320, 228640, 284371, 457280, 568742, 1137484, 1421855, 2274968, 2843710, 4549936, 5687420, 9099872, 11374840, 18199744, 22749680, 45499360, 90998720]

約数ペア:

[(1, 90998720), (2, 45499360), (4, 22749680), (5, 18199744), (8, 11374840), (10, 9099872), (16, 5687420), (20, 4549936), (32, 2843710), (40, 2274968), (64, 1421855), (80, 1137484), (160, 568742), (199, 457280), (320, 284371), (398, 228640), (796, 114320), (995, 91456), (1429, 63680), (1592, 57160), (1990, 45728), (2858, 31840), (3184, 28580), (3980, 22864), (5716, 15920), (6368, 14290), (7145, 12736), (7960, 11432)]