209499640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{32531}}^1$

素因数の和:32572

約数の個数: 64

約数和(自身を含む): 562152960

約数和(自身を除く): 352653320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 3220, 6440, 32531, 65062, 130124, 162655, 227717, 260248, 325310, 455434, 650620, 748213, 910868, 1138585, 1301240, 1496426, 1821736, 2277170, 2992852, 3741065, 4554340, 5237491, 5985704, 7482130, 9108680, 10474982, 14964260, 20949964, 26187455, 29928520, 41899928, 52374910, 104749820, 209499640]

約数ペア:

[(1, 209499640), (2, 104749820), (4, 52374910), (5, 41899928), (7, 29928520), (8, 26187455), (10, 20949964), (14, 14964260), (20, 10474982), (23, 9108680), (28, 7482130), (35, 5985704), (40, 5237491), (46, 4554340), (56, 3741065), (70, 2992852), (92, 2277170), (115, 1821736), (140, 1496426), (161, 1301240), (184, 1138585), (230, 910868), (280, 748213), (322, 650620), (460, 455434), (644, 325310), (805, 260248), (920, 227717), (1288, 162655), (1610, 130124), (3220, 65062), (6440, 32531)]