28307860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{241}}^1\times {\mathrm{839}}^1$

素因数の和:1096

約数の個数: 48

約数和(自身を含む): 68302080

約数和(自身を除く): 39994220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 241, 482, 839, 964, 1205, 1678, 1687, 2410, 3356, 3374, 4195, 4820, 5873, 6748, 8390, 8435, 11746, 16780, 16870, 23492, 29365, 33740, 58730, 117460, 202199, 404398, 808796, 1010995, 1415393, 2021990, 2830786, 4043980, 5661572, 7076965, 14153930, 28307860]

約数ペア:

[(1, 28307860), (2, 14153930), (4, 7076965), (5, 5661572), (7, 4043980), (10, 2830786), (14, 2021990), (20, 1415393), (28, 1010995), (35, 808796), (70, 404398), (140, 202199), (241, 117460), (482, 58730), (839, 33740), (964, 29365), (1205, 23492), (1678, 16870), (1687, 16780), (2410, 11746), (3356, 8435), (3374, 8390), (4195, 6748), (4820, 5873)]