20178990

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5749}}^1$

素因数の和:5778

約数の個数: 64

約数和(自身を含む): 57960000

約数和(自身を除く): 37781010

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 27, 30, 39, 45, 54, 65, 78, 90, 117, 130, 135, 195, 234, 270, 351, 390, 585, 702, 1170, 1755, 3510, 5749, 11498, 17247, 28745, 34494, 51741, 57490, 74737, 86235, 103482, 149474, 155223, 172470, 224211, 258705, 310446, 373685, 448422, 517410, 672633, 747370, 776115, 1121055, 1345266, 1552230, 2017899, 2242110, 3363165, 4035798, 6726330, 10089495, 20178990]

約数ペア:

[(1, 20178990), (2, 10089495), (3, 6726330), (5, 4035798), (6, 3363165), (9, 2242110), (10, 2017899), (13, 1552230), (15, 1345266), (18, 1121055), (26, 776115), (27, 747370), (30, 672633), (39, 517410), (45, 448422), (54, 373685), (65, 310446), (78, 258705), (90, 224211), (117, 172470), (130, 155223), (135, 149474), (195, 103482), (234, 86235), (270, 74737), (351, 57490), (390, 51741), (585, 34494), (702, 28745), (1170, 17247), (1755, 11498), (3510, 5749)]