28657560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1823}}^1$

素因数の和:1968

約数の個数: 64

約数和(自身を含む): 86676480

約数和(自身を除く): 58018920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1823, 1965, 2620, 3144, 3646, 3930, 5240, 5469, 7292, 7860, 9115, 10938, 14584, 15720, 18230, 21876, 27345, 36460, 43752, 54690, 72920, 109380, 218760, 238813, 477626, 716439, 955252, 1194065, 1432878, 1910504, 2388130, 2865756, 3582195, 4776260, 5731512, 7164390, 9552520, 14328780, 28657560]

約数ペア:

[(1, 28657560), (2, 14328780), (3, 9552520), (4, 7164390), (5, 5731512), (6, 4776260), (8, 3582195), (10, 2865756), (12, 2388130), (15, 1910504), (20, 1432878), (24, 1194065), (30, 955252), (40, 716439), (60, 477626), (120, 238813), (131, 218760), (262, 109380), (393, 72920), (524, 54690), (655, 43752), (786, 36460), (1048, 27345), (1310, 21876), (1572, 18230), (1823, 15720), (1965, 14584), (2620, 10938), (3144, 9115), (3646, 7860), (3930, 7292), (5240, 5469)]