205137840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2153}}^1$

素因数の和:2566

約数の個数: 80

約数和(自身を含む): 637825248

約数和(自身を除く): 432687408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 397, 794, 1191, 1588, 1985, 2153, 2382, 3176, 3970, 4306, 4764, 5955, 6352, 6459, 7940, 8612, 9528, 10765, 11910, 12918, 15880, 17224, 19056, 21530, 23820, 25836, 31760, 32295, 34448, 43060, 47640, 51672, 64590, 86120, 95280, 103344, 129180, 172240, 258360, 516720, 854741, 1709482, 2564223, 3418964, 4273705, 5128446, 6837928, 8547410, 10256892, 12821115, 13675856, 17094820, 20513784, 25642230, 34189640, 41027568, 51284460, 68379280, 102568920, 205137840]

約数ペア:

[(1, 205137840), (2, 102568920), (3, 68379280), (4, 51284460), (5, 41027568), (6, 34189640), (8, 25642230), (10, 20513784), (12, 17094820), (15, 13675856), (16, 12821115), (20, 10256892), (24, 8547410), (30, 6837928), (40, 5128446), (48, 4273705), (60, 3418964), (80, 2564223), (120, 1709482), (240, 854741), (397, 516720), (794, 258360), (1191, 172240), (1588, 129180), (1985, 103344), (2153, 95280), (2382, 86120), (3176, 64590), (3970, 51672), (4306, 47640), (4764, 43060), (5955, 34448), (6352, 32295), (6459, 31760), (7940, 25836), (8612, 23820), (9528, 21530), (10765, 19056), (11910, 17224), (12918, 15880)]