20775270

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:381

約数の個数: 64

約数和(自身を含む): 52254720

約数和(自身を除く): 31479450

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 31, 62, 89, 93, 155, 178, 186, 251, 267, 310, 445, 465, 502, 534, 753, 890, 930, 1255, 1335, 1506, 2510, 2670, 2759, 3765, 5518, 7530, 7781, 8277, 13795, 15562, 16554, 22339, 23343, 27590, 38905, 41385, 44678, 46686, 67017, 77810, 82770, 111695, 116715, 134034, 223390, 233430, 335085, 670170, 692509, 1385018, 2077527, 3462545, 4155054, 6925090, 10387635, 20775270]

約数ペア:

[(1, 20775270), (2, 10387635), (3, 6925090), (5, 4155054), (6, 3462545), (10, 2077527), (15, 1385018), (30, 692509), (31, 670170), (62, 335085), (89, 233430), (93, 223390), (155, 134034), (178, 116715), (186, 111695), (251, 82770), (267, 77810), (310, 67017), (445, 46686), (465, 44678), (502, 41385), (534, 38905), (753, 27590), (890, 23343), (930, 22339), (1255, 16554), (1335, 15562), (1506, 13795), (2510, 8277), (2670, 7781), (2759, 7530), (3765, 5518)]