28262290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1571}}^1$

素因数の和:1842

約数の個数: 32

約数和(自身を含む): 58402944

約数和(自身を除く): 30140654

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 257, 514, 1285, 1571, 1799, 2570, 3142, 3598, 7855, 8995, 10997, 15710, 17990, 21994, 54985, 109970, 403747, 807494, 2018735, 2826229, 4037470, 5652458, 14131145, 28262290]

約数ペア:

[(1, 28262290), (2, 14131145), (5, 5652458), (7, 4037470), (10, 2826229), (14, 2018735), (35, 807494), (70, 403747), (257, 109970), (514, 54985), (1285, 21994), (1571, 17990), (1799, 15710), (2570, 10997), (3142, 8995), (3598, 7855)]