12353920

素因数分解:

$2^7\times 5^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:315

約数の個数: 64

約数和(自身を含む): 29988000

約数和(自身を除く): 17634080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 97, 128, 160, 194, 199, 320, 388, 398, 485, 640, 776, 796, 970, 995, 1552, 1592, 1940, 1990, 3104, 3184, 3880, 3980, 6208, 6368, 7760, 7960, 12416, 12736, 15520, 15920, 19303, 25472, 31040, 31840, 38606, 62080, 63680, 77212, 96515, 127360, 154424, 193030, 308848, 386060, 617696, 772120, 1235392, 1544240, 2470784, 3088480, 6176960, 12353920]

約数ペア:

[(1, 12353920), (2, 6176960), (4, 3088480), (5, 2470784), (8, 1544240), (10, 1235392), (16, 772120), (20, 617696), (32, 386060), (40, 308848), (64, 193030), (80, 154424), (97, 127360), (128, 96515), (160, 77212), (194, 63680), (199, 62080), (320, 38606), (388, 31840), (398, 31040), (485, 25472), (640, 19303), (776, 15920), (796, 15520), (970, 12736), (995, 12416), (1552, 7960), (1592, 7760), (1940, 6368), (1990, 6208), (3104, 3980), (3184, 3880)]