13850180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 30481920

約数和(自身を除く): 16631740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 89, 124, 155, 178, 251, 310, 356, 445, 502, 620, 890, 1004, 1255, 1780, 2510, 2759, 5020, 5518, 7781, 11036, 13795, 15562, 22339, 27590, 31124, 38905, 44678, 55180, 77810, 89356, 111695, 155620, 223390, 446780, 692509, 1385018, 2770036, 3462545, 6925090, 13850180]

約数ペア:

[(1, 13850180), (2, 6925090), (4, 3462545), (5, 2770036), (10, 1385018), (20, 692509), (31, 446780), (62, 223390), (89, 155620), (124, 111695), (155, 89356), (178, 77810), (251, 55180), (310, 44678), (356, 38905), (445, 31124), (502, 27590), (620, 22339), (890, 15562), (1004, 13795), (1255, 11036), (1780, 7781), (2510, 5518), (2759, 5020)]