203940830

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{73}}^2\times {\mathrm{89}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 385125840

約数和(自身を除く): 181185010

約数列:

[1, 2, 5, 10, 43, 73, 86, 89, 146, 178, 215, 365, 430, 445, 730, 890, 3139, 3827, 5329, 6278, 6497, 7654, 10658, 12994, 15695, 19135, 26645, 31390, 32485, 38270, 53290, 64970, 229147, 279371, 458294, 474281, 558742, 948562, 1145735, 1396855, 2291470, 2371405, 2793710, 4742810, 20394083, 40788166, 101970415, 203940830]

約数ペア:

[(1, 203940830), (2, 101970415), (5, 40788166), (10, 20394083), (43, 4742810), (73, 2793710), (86, 2371405), (89, 2291470), (146, 1396855), (178, 1145735), (215, 948562), (365, 558742), (430, 474281), (445, 458294), (730, 279371), (890, 229147), (3139, 64970), (3827, 53290), (5329, 38270), (6278, 32485), (6497, 31390), (7654, 26645), (10658, 19135), (12994, 15695)]