16651340

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 36578304

約数和(自身を除く): 19926964

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 107, 124, 155, 214, 251, 310, 428, 502, 535, 620, 1004, 1070, 1255, 2140, 2510, 3317, 5020, 6634, 7781, 13268, 15562, 16585, 26857, 31124, 33170, 38905, 53714, 66340, 77810, 107428, 134285, 155620, 268570, 537140, 832567, 1665134, 3330268, 4162835, 8325670, 16651340]

約数ペア:

[(1, 16651340), (2, 8325670), (4, 4162835), (5, 3330268), (10, 1665134), (20, 832567), (31, 537140), (62, 268570), (107, 155620), (124, 134285), (155, 107428), (214, 77810), (251, 66340), (310, 53714), (428, 38905), (502, 33170), (535, 31124), (620, 26857), (1004, 16585), (1070, 15562), (1255, 13268), (2140, 7781), (2510, 6634), (3317, 5020)]