56447900

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:315

約数の個数: 72

約数和(自身を含む): 128325120

約数和(自身を除く): 71877220

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 131, 139, 155, 262, 278, 310, 524, 556, 620, 655, 695, 775, 1310, 1390, 1550, 2620, 2780, 3100, 3275, 3475, 4061, 4309, 6550, 6950, 8122, 8618, 13100, 13900, 16244, 17236, 18209, 20305, 21545, 36418, 40610, 43090, 72836, 81220, 86180, 91045, 101525, 107725, 182090, 203050, 215450, 364180, 406100, 430900, 455225, 564479, 910450, 1128958, 1820900, 2257916, 2822395, 5644790, 11289580, 14111975, 28223950, 56447900]

約数ペア:

[(1, 56447900), (2, 28223950), (4, 14111975), (5, 11289580), (10, 5644790), (20, 2822395), (25, 2257916), (31, 1820900), (50, 1128958), (62, 910450), (100, 564479), (124, 455225), (131, 430900), (139, 406100), (155, 364180), (262, 215450), (278, 203050), (310, 182090), (524, 107725), (556, 101525), (620, 91045), (655, 86180), (695, 81220), (775, 72836), (1310, 43090), (1390, 40610), (1550, 36418), (2620, 21545), (2780, 20305), (3100, 18209), (3275, 17236), (3475, 16244), (4061, 13900), (4309, 13100), (6550, 8618), (6950, 8122)]